CN116140804A - Special laser welding device and method for deep weld seam based on front reflection lens - Google Patents

Special laser welding device and method for deep weld seam based on front reflection lens Download PDF

Info

Publication number
CN116140804A
CN116140804A CN202310187960.2A CN202310187960A CN116140804A CN 116140804 A CN116140804 A CN 116140804A CN 202310187960 A CN202310187960 A CN 202310187960A CN 116140804 A CN116140804 A CN 116140804A
Authority
CN
China
Prior art keywords
laser
welding
laser welding
monitoring device
control system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310187960.2A
Other languages
Chinese (zh)
Inventor
占小红
李悦
王建峰
马超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing University of Aeronautics and Astronautics
Original Assignee
Nanjing University of Aeronautics and Astronautics
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing University of Aeronautics and Astronautics filed Critical Nanjing University of Aeronautics and Astronautics
Priority to CN202310187960.2A priority Critical patent/CN116140804A/en
Publication of CN116140804A publication Critical patent/CN116140804A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
    • B23K26/044—Seam tracking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/0869—Devices involving movement of the laser head in at least one axial direction
    • B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
    • B23K26/0884—Devices involving movement of the laser head in at least one axial direction in at least two axial directions in at least in three axial directions, e.g. manipulators, robots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B23K26/705—Beam measuring device
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Laser Beam Processing (AREA)

Abstract

The invention discloses a special laser welding device and method for deep weld joints based on a front reflector, and relates to the technical field of laser welding. The device comprises a robot, a shielding gas device, a laser welding head, a computer control system and a laser, wherein the reflecting mirror, the light intensity monitoring device, the visual monitoring device and the reflection conversion head can change a laser transmission path. The light intensity monitoring device is used for monitoring and controlling the brightness of the deep weld; the visual monitoring device displays three-dimensional imaging of the deep weld on a computer, and the welding parameters are calculated by an artificial intelligence system and fed back to the laser; the robot will adjust the laser beam to the position to be welded by adjusting the position of the reflective conversion head of the laser welding head. The invention provides a high-intelligence, high-flexibility and high-precision laser welding device for deep welding lines, and aims to solve the problems of low laser welding efficiency, unstable quality and poor accessibility of the deep welding lines.

Description

Special laser welding device and method for deep weld seam based on front reflection lens
Technical Field
The invention relates to the technical field of laser welding, in particular to a special laser welding device and method for deep weld joints based on a front reflection lens.
Background
As one of the high-energy beam welding technologies, the laser welding has the advantages of high energy density, small light spot size, narrow heat affected zone, small post-welding deformation, small residual stress and the like, is a precise welding technology with high efficiency, high precision and high automation degree, and is widely applied to the fields of aerospace, mechanical reworking, ships, new energy automobiles, rail transit and the like. However, for laser welding of deep welds, in order to ensure the safety and reliability of the welded joint, the following technical difficulties need to be overcome: (1) The accessibility of the laser welding head is limited, the robot and the tool are easy to interfere, so that welding dead angles are generated, the accessibility of the welding head is reduced along with the increase of process numbers, and meanwhile, the welding is performed by continuously changing angles during the laser welding at the corners, so that poor weld forming at the corners is caused, and the uniformity is poor; (2) The laser welding has higher requirement on assembly precision, the welding leakage defect is easy to be caused when the welding seam gap is larger than 0.2mm, a complex structure is provided with a plurality of welding seams, irregular heat input can cause the increase of procedure numbers, the welding seam involution precision is reduced, and the required gap requirement is difficult to be achieved by manual repair; (3) The number of welding lines of the complex structure is large, the welding lines are complex, the accumulation of welding deformation can be caused by repeated local heating, the assembly quality is reduced, the orthopedic cost is increased, and meanwhile, the service performance of a weldment can be seriously influenced and the failure tendency of a joint is increased due to the generation of larger welding residual stress. The traditional laser welding equipment has the problems that the flexibility is insufficient, the welding cannot be performed in a narrow space, and the like, and the accurate laser welding of deep welding seams cannot be met.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a special laser welding device and method for a deep weld seam based on a front reflection lens. The method mainly refers to changing the transmission path of the laser beam by using the reflection conversion head, and provides high-intelligence, high-flexibility and high-precision laser welding equipment for welding deep weld joints. The method aims to solve the problems that laser welding efficiency is low, quality is unstable and deep welding seams cannot be welded.
The invention is realized by the following technical scheme.
The laser welding device for deep weld joint mainly comprises a robot, a shielding gas device, a laser welding head, a computer control system and a laser for connecting and emitting laser; the computer control system is connected with the robot, the shielding gas device, the laser welding head and the laser and used for controlling the operation of each system and the selection of welding parameters, and meanwhile, the computer of the computer control system is used for intelligently identifying a welding path and monitoring welding quality in real time.
Further, the laser welding head comprises a collimating lens, a focusing lens, a protective lens, a first adjusting structure, a protective gas device, a reflecting mirror, a light intensity monitoring device, a visual monitoring device, a reflection conversion head, a second adjusting mechanism and an optical fiber interface; the collimation protection lens is arranged in the laser welding head and is used for adjusting the emergent position of laser of the laser so as to change the relative position of a laser focus; the protective gas device is connected to the laser welding head through a first adjusting structure, is a telescopic nozzle, and can be adjusted in size to realize full coverage of protective gas at a position to be welded; the reflecting mirror, the light intensity monitoring device and the visual monitoring device are arranged on the reflecting conversion head; the reflective conversion head is connected to the laser welding head through a first adjusting mechanism.
Further, the light intensity monitoring device is distributed with photosensitive elements for monitoring the brightness of the deep weld seam and feeding back the brightness of the deep weld seam to the computer control system, and the light intensity monitoring device automatically adjusts the brightness until the complete weld seam morphology can be presented in the computer; the visual monitoring device displays three-dimensional imaging of the deep weld on a computer, calculates welding parameters through an artificial intelligence system and feeds back the welding parameters to the laser; the robot adjusts the laser beam to the position to be welded by adjusting the positions of the laser welding head, the reflection conversion head and the second adjusting mechanism; the artificial intelligence system can automatically simulate the positions of the optimal reflection conversion head and the second regulating mechanism.
Further, the laser beam is transmitted to the collimating lens for adjustment through the optical fiber interface by the laser, then the laser beam is transmitted to the focusing lens, and finally the laser beam is transmitted to the position to be welded through the reflecting mirror;
further, the light intensity monitoring device and the visual monitoring device feed back monitoring data to a computer of a computer control system, and the computer control system controls the position of the second regulating mechanism; the reflection conversion head is provided with a lens mounting groove for mounting the radiation mirror, so that the reflection mirror can be conveniently replaced.
A laser welding method facing to a deep weld joint comprises the following steps:
step one, detecting a required welding position by adopting a visual detection method, and preliminarily adjusting the positions of a robot and a laser welding head;
step two, the light intensity monitoring device adjusts the overall brightness of the deep weld joint, and the visual monitoring device displays the three-dimensional imaging of the deep weld joint on a computer;
step three, according to the three-dimensional imaging of the position to be welded, the computer control system utilizes the optimal position judged by artificial intelligence to adjust the robot and the second adjusting mechanism;
step four, automatically simulating the path of the laser beam on a computer of a computer control system, and adjusting the position of a reflection conversion head;
fifthly, regulating and controlling the first regulating structure, the position of the protective gas device and the protective gas flow in real time according to the shape of the complex component and the position to be welded;
and step six, welding the deep weld joint, monitoring whether the welding position deviates in real time through a computer in the welding process, and automatically alarming by a computer control system if the welding position deviates, so that the safety of welding operation is improved.
The invention has the advantages and positive effects that:
according to the device and the method for special laser welding of the deep weld seam based on the front reflection lens, high-precision laser welding of the deep weld seam is realized by changing the beam path. The invention can also intelligently identify the welding path and monitor the welding quality in real time, and has the advantages of reducing air holes, reducing welding spatter, improving welding seam forming and the like.
Drawings
Fig. 1 is an overall schematic diagram of a laser welding device special for deep welds based on a front reflector.
Fig. 2 is a flow chart of a method for laser welding a deep weld based on a front reflector.
Fig. 3 is a schematic diagram of the laser beam transmission path during deep bead laser welding.
In the figure:
1-a robot;
2-a shielding gas device;
3-a laser welding head; 30-collimating optics; 31-a focusing lens; 32-protecting the lens; 33-a first adjustment structure; 34-a shielding gas device; 35-a mirror; 36-a light intensity monitoring device; 37-visual monitoring means; 38-a reflective conversion head; 39-a second adjustment mechanism; 40-laser beam; 41-an optical fiber interface;
5-a computer control system;
6-laser
Detailed Description
The present invention will be described in further detail below with reference to the drawings and examples for the purpose of facilitating understanding to those skilled in the art. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to be limiting. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
The invention is further illustrated by a specific example.
Examples
As shown in fig. 1. The embodiment is based on a special laser welding device and method for deep weld joints based on a front-mounted reflector, and laser welding is carried out on a box-type complex welding structure.
The invention discloses a laser welding device for deep weld joints, which mainly comprises a robot 1, a shielding gas device 2, a laser welding head 3, a computer control system 5 and a laser 6 for connecting and emitting laser; the computer control system 5 is connected with the robot 1, the shielding gas device 2, the laser welding head 3 and the laser 6 and is used for controlling the operation of each system and the selection of welding parameters, and meanwhile, the computer of the computer control system is used for intelligently identifying a welding path and monitoring welding quality in real time.
The laser welding head 3 comprises a collimating lens 30, a focusing lens 31, a protective lens 32, a first adjusting structure 33, a protective gas device 34, a reflecting mirror 35, a light intensity monitoring device 36, a visual monitoring device 37, a reflection conversion head 38, a second adjusting mechanism 39 and an optical fiber interface 41; the collimation protection lens 30 is arranged in the laser welding head 3 and is used for adjusting the emergent position of laser of the laser so as to change the relative position of the laser focus; the reflecting mirror 35, the light intensity monitoring device 36 and the visual monitoring device 37 are arranged on the reflecting conversion head 38; the reflective conversion head 38 is connected to the laser welding head 3 by the first adjustment mechanism 24.
The light intensity monitoring device 36 is provided with photosensitive elements for monitoring the brightness of the deep weld and feeding back the brightness of the deep weld to the computer control system, and the light intensity monitoring device 36 automatically adjusts the brightness until the complete weld morphology can be presented in the computer; the visual monitoring device 37 displays three-dimensional imaging of the deep weld on a computer, calculates welding parameters through an artificial intelligence system and feeds back the welding parameters to the laser 6; the robot 1 adjusts the laser beam to the position to be welded by adjusting the positions of the laser welding head 3, the reflection conversion head 38 and the second adjusting mechanism 39; the artificial intelligence system can automatically simulate the optimal positions of the reflective conversion head 38 and the second adjustment mechanism 39.
The laser beam 40 is transmitted to the collimating lens 30 for adjustment by the laser 6 through the optical fiber interface 41, then the laser beam 40 is transmitted to the focusing lens 31, and finally the laser beam 40 is transmitted to the position to be welded through the reflecting mirror 35; the reflection conversion head 38 is provided with a lens mounting groove for mounting the mirror, so that the mirror 35 can be replaced conveniently.
The shielding gas device 34 is connected to the laser welding head 3 through the first adjusting structure 33, the shielding gas device 34 is a telescopic nozzle, and the size of the nozzle can be adjusted, so that the shielding gas at the position to be welded is fully covered.
The method for laser welding the deep weld joint is applied to a laser welding method for the deep weld joint, referring to fig. 3, the size of the complex box-shaped structure is 500mm multiplied by 200mm multiplied by 2mm, the upper surface of the box-shaped structure is provided with an opening with the size of 200mm multiplied by 200mm, the material is titanium alloy, and the left lower side of the box-shaped structure is required to be welded, and the method can be realized by the following steps:
step one, detecting a required welding position by adopting a visual detection method, and adjusting the positions of a robot 1 and a laser welding head 3 to the center position of an opening on the upper surface of a box-shaped structure;
step two, the light intensity monitoring device 36 monitors the brightness of the deep weld, the weld area is unclear due to the characteristic of the deep weld, the light intensity monitoring device 36 adjusts the brightness to a visible range, the position of the weld can be clearly observed, and the visual monitoring device 37 displays the three-dimensional imaging of the position to be welded required by the deep weld on a computer;
step three, according to the three-dimensional imaging of the position to be welded, the computer control system 5 utilizes the optimal position determined by artificial intelligence to adjust the robot 1 and the second adjusting mechanism 39, the robot 1 is adjusted to the position of the laser welding head 3 perpendicular to the opening of the deep weld joint, the second adjusting mechanism 39 is adjusted, and the focus of the laser beam is exactly positioned on the position to be welded;
step four, the path of the laser beam can be automatically simulated on a computer of the computer control system, and the position of the reflection conversion head 38 can be adjusted in real time according to the change of the welding line;
step five, the first regulating structure 33 is regulated and controlled in real time according to the shape of the complex component and the position to be welded, the size of the nozzle of the protective gas device 34 is the size of the opening of the deep weld joint, and the protective gas flow is regulated to 20L/min;
step six, welding the deep weld joint, wherein the laser power is 900W, and the welding speed is 0.03m/s. And in the welding process, whether the welding position is deviated or not is monitored in real time through a computer, and if the deviation occurs, a computer control system automatically alarms, so that the safety of welding operation is improved.
It is to be understood that the foregoing examples of the invention are provided for the purpose of illustration only and are not intended to limit the scope of the invention, which is defined by the claims, since modifications in both the detailed description and the application scope of the invention will become apparent to those skilled in the art upon consideration of the teachings of the invention. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims (6)

1. A special laser welding device of depth welding seam based on leading reflection lens, its characterized in that: the device mainly comprises a robot (1), a shielding gas device (2), a laser welding head (3), a computer control system (5) and a laser (6);
the computer control system (5) is connected with the robot (1), the shielding gas device (2), the laser welding head (3) and the laser (6) and is used for controlling the operation of each system and the selection of welding parameters, and simultaneously is used for intelligently identifying a welding path and monitoring the welding quality in real time;
the laser welding head (3) comprises a collimating lens (30), a focusing lens (31), a protective lens (32), a first adjusting structure (33), a protective gas device (34), a reflecting mirror (35), a light intensity monitoring device (36), a visual monitoring device (37), a reflection conversion head (38), a second adjusting mechanism (39) and an optical fiber interface (41); the collimating lens (30), the focusing lens (31) and the protecting lens (32) are sequentially arranged in the laser welding head (3) and are used for adjusting the emergent position of a laser beam in the laser so as to change the relative position of a laser focus; the shielding gas device (34) is connected to the laser welding head (3) through a first adjusting structure (33), and the shielding gas device (34) is a telescopic nozzle, so that the shielding gas at the position to be welded is fully covered; the reflecting mirror (35), the light intensity monitoring device (36) and the visual monitoring device (37) are arranged on the reflection conversion head (38); the reflection conversion head (38) is connected to the laser welding head (3) through a first adjusting mechanism (24);
the laser beam (40) is transmitted to the collimating lens (30) for adjustment through the optical fiber interface (41) by the laser (6), then the laser beam (40) is transmitted to the focusing lens (31), and finally the laser beam (40) is transmitted to the position to be welded through the reflecting mirror (35);
the light intensity monitoring device (36) and the visual monitoring device (37) feed back monitoring data to a computer control system, and the computer control system controls the position of the second regulating mechanism (39).
2. The laser welding device special for deep weld seams based on the front reflector plate, according to claim 1, is characterized in that: the light intensity monitoring device (36) is distributed with photosensitive elements for monitoring the brightness of the deep weld seam and feeding back the brightness of the deep weld seam to the computer control system, and the light intensity monitoring device (36) automatically adjusts the brightness.
3. The laser welding device special for deep weld seams based on the front reflector plate, according to claim 1, is characterized in that: the visual monitoring device (37) displays the three-dimensional imaging of the deep weld on a computer, and the welding parameters are calculated by an artificial intelligence system and fed back to the laser (6).
4. The laser welding device special for deep weld seams based on the front reflector plate, according to claim 1, is characterized in that: the computer control system (5) adjusts the laser beam to the position to be welded by adjusting the positions of the laser welding head (3), the reflection conversion head (38) and the second adjusting mechanism (39); the artificial intelligence system can automatically simulate the optimal positions of the reflective conversion head (38) and the second adjustment mechanism (39).
5. The laser welding device special for deep weld seams based on the front reflector plate, according to claim 1, is characterized in that: the nozzle of the shielding gas device (34) can be changed in size according to the size of the deep weld joint, and the computer control system (5) can automatically set the shielding gas flow.
6. A method for laser welding a deep weld based on a front reflector according to claim 1, comprising the steps of:
firstly, detecting a required welding position by adopting a visual detection method, and preliminarily adjusting the position of a laser welding head (3) through a robot (1);
step two, the light intensity monitoring device (36) adjusts the overall brightness of the deep weld, and the visual monitoring device (37) displays the three-dimensional imaging of the deep weld on the computer control system (5);
step three, according to the three-dimensional imaging of the position to be welded, the computer control system (5) utilizes the optimal position judged by artificial intelligence to adjust the robot (1) and the second adjusting mechanism (39);
step four, a computer control system (5) automatically simulates the path of the laser beam and adjusts the position of a reflection conversion head (38);
regulating the positions of the first regulating structure (33) and the protective gas device (34) and the protective gas flow in real time according to the shape of the complex component and the position to be welded;
and step six, welding the deep weld joint, monitoring whether the welding position deviates in real time through a computer in the welding process, and automatically alarming by a computer control system if the welding position deviates, so that the safety of welding operation is improved.
CN202310187960.2A 2023-02-28 2023-02-28 Special laser welding device and method for deep weld seam based on front reflection lens Pending CN116140804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310187960.2A CN116140804A (en) 2023-02-28 2023-02-28 Special laser welding device and method for deep weld seam based on front reflection lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310187960.2A CN116140804A (en) 2023-02-28 2023-02-28 Special laser welding device and method for deep weld seam based on front reflection lens

Publications (1)

Publication Number Publication Date
CN116140804A true CN116140804A (en) 2023-05-23

Family

ID=86361741

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310187960.2A Pending CN116140804A (en) 2023-02-28 2023-02-28 Special laser welding device and method for deep weld seam based on front reflection lens

Country Status (1)

Country Link
CN (1) CN116140804A (en)

Similar Documents

Publication Publication Date Title
CA1264070A (en) Laser welding of a sleeve within a tube
US5245155A (en) Single point powder feed nozzle for use in laser welding
CN101927414A (en) Welding control system
JPS62254991A (en) Laser welding method and apparatus
US20020144987A1 (en) Cube corner laser beam retroreflector apparatus for a laser equipped machine tool
CN112638570B (en) Backside welding system and method
CN111872559A (en) Laser welding device and working method thereof
CN111331248A (en) Laser stirring welding device with touch tracking function
CN116140804A (en) Special laser welding device and method for deep weld seam based on front reflection lens
CN110238477A (en) A kind of seam tracking system and its working method of the mechanical rotation for laser soldering
US20210394305A1 (en) Laser welding method and apparatus
KR20190028122A (en) Apparatus and method for laser welding of aluminum
JPH10328860A (en) Method and device for laser welding
JPH0716776A (en) Laser welding method and device of lap joint part
CN107378240A (en) A kind of galvanometer laser stitch welding technique
ZA200809095B (en) Method and device for displaying and monitoring the profile of a weld bead inside a groove provided between two metal workpieces
CN217982010U (en) Optical path system of additive manufacturing equipment
EP4035820A1 (en) Laser processing head having a diaphragm to increase scan field of the laser beam
JP4647627B2 (en) Support lattice internal lattice welding apparatus and welding method using laser apparatus, and support lattice manufactured thereby
CN219188198U (en) Temperature self-adaptive laser flame correction equipment
CN113427128A (en) Welding maintenance laser head for sealing welding seam
KR20170090048A (en) Hybrid Welding Apparatus
CN114871571B (en) Integrated main and auxiliary beam splitting device of blue laser welding robot
CN110385551A (en) Laser vision weld joint tracking application method for welding transformer corrugated tank
CN116237644A (en) Laser-arc hybrid welding device and method for U-shaped ribs

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination