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CN-121972749-A - Rotary tower type laser tin soldering system and method

CN121972749ACN 121972749 ACN121972749 ACN 121972749ACN-121972749-A

Abstract

The invention provides a rotary tower type laser tin soldering system and a method, which relate to the technical field of laser welding, wherein the rotary tower type laser tin soldering system comprises a rotary component, a wire feeding mechanism, a laser component, a CCD (charge coupled device) vision device and an infrared temperature measuring lens; the rotating assembly comprises a base, a rotating mechanism and an installing seat, wherein the rotating mechanism is installed on the base and connected with the installing seat, the wire feeding mechanism is installed on the installing seat, the laser assembly comprises an X-axis adjusting unit, a Y-axis adjusting unit, an adjusting plate and two laser units, the two laser units are symmetrically installed on the adjusting plate, the laser units are provided with at least one laser head, a first included angle is formed between laser emitted by the laser heads of the two laser units, and the laser angles emitted by the laser heads can be independently adjusted. The system can reduce radiation intensity, reduce the phenomenon of thermal damage, and can realize welding by only irradiating a beam of laser on the bonding pad, thereby greatly improving the welding success rate.

Inventors

  • PAN WENJIE

Assignees

  • 武汉欣尔特科技有限公司

Dates

Publication Date
20260505
Application Date
20260205

Claims (10)

  1. 1. The utility model provides a rotatory tower laser tin soldering system which characterized in that, includes rotating assembly, wire feeding mechanism, laser assembly, CCD vision device and infrared temperature measurement camera lens, wherein: The rotating assembly comprises a base, a rotating mechanism and a mounting seat, and the rotating mechanism is mounted on the base and connected with the mounting seat; The wire feeding mechanism is arranged on the mounting seat and is used for providing wires for the laser component; The laser assembly comprises an X-axis adjusting unit, a Y-axis adjusting unit, an adjusting plate and two laser units, wherein the X-axis adjusting unit is installed on the installation seat, the Y-axis adjusting unit is respectively connected with the X-axis adjusting unit and the adjusting plate, the two laser units are symmetrically installed on the adjusting plate, the laser units are provided with at least one laser head, a first included angle is arranged between lasers emitted by the laser heads of the two laser units, and the laser angles emitted by the laser heads can be independently adjusted; the CCD vision device is arranged on the mounting seat and used for positioning a product to be welded; The infrared temperature measuring lens is arranged on the mounting seat and used for measuring the temperature of the wire and the product to be welded in a non-contact mode.
  2. 2. The turret laser soldering system of claim 1 wherein the laser unit has three laser heads equally spaced on the adjustment plate with the focal points in the same position, and wherein a second included angle is provided between two adjacent ones of the three laser heads.
  3. 3. The turret laser soldering system of claim 2 wherein the second included angle is 20 degrees.
  4. 4. The turret laser soldering system of claim 1 wherein the first included angle is 45 degrees.
  5. 5. The turret laser soldering system of claim 1 wherein the laser head has a focal length of 100mm.
  6. 6. The rotary-turret laser soldering system of claim 1, wherein the wire feed mechanism includes a wire supply reel mounted on the mount for providing wire to the guide tube, a guide tube mounted on the mount and connected to the guide tube for adjusting the position of the guide tube, and an adjustment bracket having a distal end at a laser focus of the laser head.
  7. 7. The turret laser soldering system of claim 6, wherein the wire feed mechanism further includes a smoke evacuation tube mounted to the mount and having a bottom portion above the distal end of the guide tube.
  8. 8. The rotary-turret laser soldering system of claim 1, wherein two wire feed mechanisms are provided, the two wire feed mechanisms being symmetrically disposed on the mount.
  9. 9. The turret laser soldering system of claim 1 wherein the light source of the laser head has a wavelength of 915nm or 450nm.
  10. 10. A turret laser soldering method, characterized in that a turret laser soldering system according to any one of claims 1 to 9 is used, the turret laser soldering method comprising: providing wire to the laser assembly by the wire feed mechanism; the adjusting plate is driven to move along the X-axis and Y-axis directions by the X-axis adjusting unit and the Y-axis adjusting unit; heating the wire by at least one laser head arranged by the two laser units so as to weld a product to be welded; positioning a product to be welded through the CCD vision device; The mounting seat is driven to rotate through the rotating mechanism, and the welding position is adjusted; And non-contact temperature measurement is carried out on the wire and the product to be welded through the infrared temperature measuring lens so as to regulate and control heating power.

Description

Rotary tower type laser tin soldering system and method Technical Field The invention relates to the technical field of laser welding, in particular to a rotary tower type laser tin soldering system and method. Background The laser soldering is a novel non-contact processing mode, a continuous semiconductor laser is adopted in the laser soldering, the high-energy laser pulse is utilized to locally heat the tin wire material in a micro area, and the energy of laser radiation is guided to the internal diffusion of the tin wire material through heat conduction to fuse the material with other materials after melting. The laser soldering belongs to non-contact processing, does not generate mechanical stress on an object to be processed, has small heat affected zone, can carry out fine processing, and can finish a process which cannot be realized by a plurality of conventional methods. The traditional laser tin soldering system generally adopts a single laser beam, the required laser energy density is high, the radiation intensity is large, the thermal damage is easy to cause, and the welding fault tolerance is high. Disclosure of Invention In view of this, the present invention provides a rotary tower type laser soldering system and method, so as to solve the technical problems of high laser energy density, high radiation intensity, easy thermal damage and high soldering fault tolerance in the prior art that the laser soldering system in the prior art mentioned in the background art generally adopts a single laser beam. The technical scheme of the invention is realized as follows: In a first aspect, the invention provides a rotary tower type laser soldering system, comprising a rotary component, a wire feeding mechanism, a laser component, a CCD vision device and an infrared temperature measuring lens, wherein: The rotating assembly comprises a base, a rotating mechanism and a mounting seat, and the rotating mechanism is mounted on the base and connected with the mounting seat; The wire feeding mechanism is arranged on the mounting seat and is used for providing wires for the laser component; The laser assembly comprises an X-axis adjusting unit, a Y-axis adjusting unit, an adjusting plate and two laser units, wherein the X-axis adjusting unit is installed on the installation seat, the Y-axis adjusting unit is respectively connected with the X-axis adjusting unit and the adjusting plate, the two laser units are symmetrically installed on the adjusting plate, the laser units are provided with at least one laser head, a first included angle is arranged between lasers emitted by the laser heads of the two laser units, and the laser angles emitted by the laser heads can be independently adjusted; the CCD vision device is arranged on the mounting seat and used for positioning a product to be welded; The infrared temperature measuring lens is arranged on the mounting seat and used for measuring the temperature of the wire and the product to be welded in a non-contact mode. In some optional embodiments, preferably, the laser unit is provided with three laser heads, the three laser heads are equally spaced on the adjusting plate and the focuses are located at the same position, and a second included angle is formed between two adjacent laser heads of the three laser heads. In some alternative embodiments, preferably, the second included angle is 20 degrees. In some alternative embodiments, preferably, the first included angle is 45 degrees. In some alternative embodiments, it is preferred that the focal length of the laser head is 100mm. In some alternative embodiments, the wire feeding mechanism preferably comprises a wire feeding reel, a guide tube and an adjusting frame, wherein the wire feeding reel is installed on the installation seat and used for providing wires for the guide tube, the adjusting frame is installed on the installation seat and connected with the guide tube so as to adjust the position of the guide tube, and the tail end of the guide tube is located at the laser focus of the laser head. In some alternative embodiments, preferably, the wire feed mechanism further comprises a smoke evacuation tube mounted on the mount with a bottom portion above the end of the guide tube. In some alternative embodiments, preferably, two wire feeding mechanisms are provided, and the two wire feeding mechanisms are symmetrically arranged on the mounting seat. In some alternative embodiments, it is preferred that the light source of the laser head has a wavelength of 915nm or 450nm. In a second aspect, the present invention provides a turret laser soldering method using a turret laser soldering system as described in the first aspect, the turret laser soldering method comprising: providing wire to the laser assembly by the wire feed mechanism; the adjusting plate is driven to move along the X-axis and Y-axis directions by the X-axis adjusting unit and the Y-axis adjusting unit; heating the wire by at least one laser hea