CN117506145A - High-speed laser welding system and method for continuous steel production - Google Patents

High-speed laser welding system and method for continuous steel production Download PDF

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Publication number
CN117506145A
CN117506145A CN202311761626.XA CN202311761626A CN117506145A CN 117506145 A CN117506145 A CN 117506145A CN 202311761626 A CN202311761626 A CN 202311761626A CN 117506145 A CN117506145 A CN 117506145A
Authority
CN
China
Prior art keywords
laser
welding
laser welding
axis
galvanometer
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
CN202311761626.XA
Other languages
Chinese (zh)
Inventor
蔡得涛
韩善果
罗子艺
任香会
高世一
刘剑
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.)
Guangdong Tuobituo Technology Co ltd
Yangjiang Zhongwubaton Institute Of Technology
China Uzbekistan Welding Research Institute of Guangdong Academy of Sciences
Original Assignee
Guangdong Tuobituo Technology Co ltd
Yangjiang Zhongwubaton Institute Of Technology
China Uzbekistan Welding Research Institute of Guangdong Academy of Sciences
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 Guangdong Tuobituo Technology Co ltd, Yangjiang Zhongwubaton Institute Of Technology, China Uzbekistan Welding Research Institute of Guangdong Academy of Sciences filed Critical Guangdong Tuobituo Technology Co ltd
Priority to CN202311761626.XA priority Critical patent/CN117506145A/en
Publication of CN117506145A publication Critical patent/CN117506145A/en
Pending legal-status Critical Current

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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
    • B23K26/03—Observing, e.g. monitoring, the workpiece
    • B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
    • 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
    • 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

Abstract

The invention provides a high-speed laser welding system and method for continuous steel production, and relates to the technical field of laser welding. The system comprises a mounting frame, a galvanometer laser welding head, a motion mechanism, a control mechanism and a conveying mechanism; the mounting frame is used for mounting the moving mechanism, the moving mechanism is positioned above the conveying mechanism and can perform three-dimensional movement relative to the conveying mechanism, and the galvanometer laser welding head is mounted on the moving mechanism; the vibrating mirror laser welding head is provided with a laser, an X-axis vibrating mirror, a Y-axis vibrating mirror, a semi-transparent reflecting mirror, a nozzle and a visual detection mechanism, wherein the semi-transparent reflecting mirror is arranged below the Y-axis vibrating mirror, and the visual detection mechanism judges the welding effect by collecting small hole image information data in the welding process; the control mechanism is electrically connected with the X-axis vibrating mirror, the Y-axis vibrating mirror, the movement mechanism and the visual detection mechanism respectively. The laser is adopted to carry out high-speed processing, so that a steel strip welding line with a small heat affected zone is formed, the strip is not easy to break, and the welding can be carried out without stopping the line in the process of the continuous rolling motion.

Description

High-speed laser welding system and method for continuous steel production
Technical Field
The invention relates to the technical field of laser welding, in particular to a high-speed laser welding system and method for continuous rolling steel production.
Background
The cold-rolled steel strip is the most common rolling process on modern steel strip extension processing metal, and along with continuous progress of rolling preparation, continuous rolling technology is wider and wider, and has the advantages of mass production and processing, cost reduction, convenient operation and the like, steel is influenced by steel strip connection quality and efficiency in the rolling process of a continuous machine, the arc welding efficiency adopted is low, stop line welding processing is required, and the welding part is easy to break, so that the improvement of production efficiency is not facilitated, and the development of enterprises is limited.
In view of this, the present invention has been made.
Disclosure of Invention
The invention aims to provide a high-speed laser welding system and a high-speed laser welding method for continuous steel production, which adopt laser to carry out high-speed processing to form a steel strip welding line with a small heat affected zone, so that the steel strip is not easy to break, and meanwhile, the optical characteristics of the laser are utilized to realize non-contact long-distance high-speed welding, so that the welding can be realized without stopping wires in the moving process of continuous steel.
Embodiments of the invention may be implemented as follows:
in a first aspect, the invention provides a high-speed laser welding system for continuous steel production, which comprises a mounting frame, a galvanometer laser welding head, a movement mechanism, a control mechanism and a conveying mechanism for driving a steel strip to be welded to move;
the mounting frame is used for mounting the moving mechanism, the moving mechanism is positioned above the conveying mechanism and can perform three-dimensional movement relative to the conveying mechanism, and the galvanometer laser welding head is mounted on the moving mechanism and moves synchronously along with the moving mechanism;
the vibrating mirror laser welding head is provided with a laser, an X-axis vibrating mirror, a Y-axis vibrating mirror, a semi-transparent mirror, a nozzle and a visual detection mechanism, wherein the semi-transparent mirror is arranged below the Y-axis vibrating mirror to divide laser into welding laser and detection laser, the welding laser faces the steel strip to be welded through the nozzle, the detection laser faces the visual detection mechanism, and the visual detection mechanism is used for judging the welding effect by collecting small hole image information data in the welding process;
the control mechanism comprises a galvanometer deflection control module, a motion mechanism control module and a laser power control module, wherein the galvanometer deflection control module is respectively and electrically connected with the X-axis galvanometer and the Y-axis galvanometer to control deflection of the X-axis galvanometer and the Y-axis galvanometer, the motion mechanism control module is electrically connected with the motion mechanism, and the vision detection mechanism is electrically connected with the laser power control module to regulate and control the power of laser emitted by the laser according to signals fed back by the vision detection mechanism.
In an alternative embodiment, the information feedback frequency of the visual detection mechanism is 500-1000Hz.
In an alternative embodiment, the laser emits laser light at a power of 2000-8000W.
In an alternative embodiment, the galvanometer laser welding head is further provided with a welding field lens and a detection field lens, the welding field lens is arranged between the welding laser and the nozzle, and the detection field lens is arranged between the detection laser and the visual detection mechanism.
In an alternative embodiment, the motion mechanism includes an X-axis sliding rail, a Y-axis sliding rail, and a Z-axis sliding rail, the X-axis sliding rail is mounted on the mounting frame, the Z-axis sliding rail is mounted on the X-axis sliding rail and can slide left and right relative to the X-axis sliding rail, the galvanometer laser welding head is mounted on the Z-axis sliding rail and can move up and down relative to the Z-axis sliding rail, and the mounting frame is mounted on the Z-axis sliding rail and can move back and forth relative to the Z-axis sliding rail.
In an alternative embodiment, the conveying mechanism comprises a casing, and an active conveying member, a passive conveying member and a conveying motor which are arranged in the casing, wherein the passive conveying member is of a plurality of roller structures and is uniformly distributed in the casing, and the active conveying member is connected with the conveying motor.
In an alternative embodiment, the conveying mechanism further comprises a support member disposed within the housing and below the passive conveying member.
In an alternative embodiment, the conveying mechanism further comprises a thickness detecting member for detecting the thickness of the steel strip to be welded.
In a second aspect, the present invention provides a high-speed laser welding method for continuous steel production, which uses the high-speed laser welding system for continuous steel production according to any one of the preceding embodiments to perform high-speed laser welding on a steel strip to be welded moving along with the conveying mechanism.
In an alternative embodiment, the thickness of the steel strip to be welded is 0.5-5mm, and the welding speed is 2-4.0m/min.
The beneficial effects of the embodiment of the invention include, for example:
the embodiment of the invention provides a high-speed laser welding system for continuous steel production, which utilizes a conveying mechanism to drive a steel strip to be welded to move, and utilizes a moving mechanism to drive a vibrating mirror laser welding head to move back and forth synchronously with the steel strip to be welded, the vibrating mirror laser welding head can also realize up-down and left-right movement, meanwhile, an X-axis vibrating mirror and a Y-axis vibrating mirror in the vibrating mirror laser welding head can deflect to change the path of laser beams, so that laser can be used for continuous spot welding and seam welding in different areas of the same plane, high-speed high-precision welding is realized in the moving process, in order to ensure the welding accuracy in the moving process, a semi-transparent mirror and a visual detection mechanism are also arranged in the vibrating mirror laser welding head, the semi-transparent mirror can reflect laser emitted from the Y-axis vibrating mirror to form welding laser and detection laser, wherein the welding laser is used for realizing the welding to be used for entering the visual detection mechanism to detect, and simultaneously, the visual detection mechanism can also realize photographing of small holes (namely welding holes) in the welding process, the image information data is utilized to judge and control the laser to control the welding mechanism so as to enhance the power of the welding effect in the laser welding process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a high-speed laser welding system for continuous steel production according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a galvanometer laser welding head in a high-speed laser welding system for continuous steel production according to an embodiment of the present application;
FIG. 3 is a control schematic diagram of a control mechanism in a high-speed laser welding system for continuous steel production according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a transfer mechanism in a high-speed laser welding system for continuous steel production according to an embodiment of the present application;
FIG. 5 is a schematic structural view of a support for a transfer mechanism in a high speed laser welding system for continuous steel production according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a high-speed laser welding system for continuous steel production according to an embodiment of the present application during lap welding;
fig. 7 is a schematic structural diagram of a high-speed laser welding system for continuous steel production according to an embodiment of the present application during butt welding.
Icon: 100-a high-speed laser welding system for continuous steel production; 110-mounting rack; 120-galvanometer laser welding head; 121-a laser; 1211-welding an optical fiber; 122-X axis galvanometer; 123-Y axis galvanometer; 124-a semi-transparent mirror; 125-nozzles; 126-visual inspection mechanism; 1261-visual inspection fiber; 127-welding field lens; 128-detecting field lens; 129-laser beam; 130-a movement mechanism; 131-X axis sliding track; 132-Y axis sliding track; 133-Z axis sliding track; 140-a control mechanism; 141-a galvanometer deflection control module; 142-a motion mechanism control module; 143-a laser power control module; 150-a conveying mechanism; 151-a housing; 152-active conveyor; 153-passive transport; 154-a support; 200-steel strips to be welded; 210-weld.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Example 1
Referring to fig. 1, the present embodiment provides a high-speed laser welding system 100 for continuous steel production, which includes a mounting frame 110, a galvanometer laser welding head 120, a moving mechanism 130, a control mechanism 140, and a conveying mechanism 150 for driving a steel strip 200 to be welded to move.
The mounting rack 110 is used for mounting the moving mechanism 130, and the mounting rack 110 in this embodiment may be a portal frame, which has a simple structure and high stability.
The moving mechanism 130 is located above the conveying mechanism 150 and can perform three-dimensional movement relative to the conveying mechanism 150, in this embodiment, the moving mechanism 130 includes an X-axis sliding rail 131, a Y-axis sliding rail 132 and a Z-axis sliding rail 133, the X-axis sliding rail 131 is mounted on the mounting frame 110, the Z-axis sliding rail 133 is mounted on the X-axis sliding rail 131 and can slide left and right relative to the X-axis sliding rail 131, the galvanometer laser welding head 120 is mounted on the Z-axis sliding rail 133 and can move up and down relative to the Z-axis sliding rail 133, and the mounting frame 110 is mounted on the Z-axis sliding rail 133 and can move back and forth relative to the Z-axis sliding rail 133. Through X, Y and the sliding track in the Z-axis direction, the vibrating mirror laser welding head 120 can be driven to perform three-dimensional movement, and the accuracy of the welding position is ensured.
Referring to fig. 2, the galvanometer laser welding head 120 is mounted on the moving mechanism 130 and moves synchronously with the moving mechanism 130; the vibrating mirror laser welding head 120 is provided with a laser 121, an X-axis vibrating mirror 122, a Y-axis vibrating mirror 123, a semi-transparent mirror 124, a nozzle 125 and a visual detection mechanism 126, wherein the semi-transparent mirror 124 is arranged below the Y-axis vibrating mirror 123 to divide a laser beam 129 into welding laser and detection laser, the welding laser faces the steel strip 200 to be welded through the nozzle 125, the detection laser faces the visual detection mechanism 126, and the visual detection mechanism 126 judges the welding effect by collecting small hole image information data in the welding process; the information feedback frequency of the visual detection mechanism 126 is 500-1000Hz. The galvanometer laser welding head 120 is also provided with a welding field lens 127 and a detection field lens 128, the welding field lens 127 being disposed between the welding laser and the nozzle 125, the detection field lens 128 being disposed between the detection laser and the visual detection mechanism 126.
In this embodiment, the principle of the vibrating mirror is: by inputting a position signal, the X-axis vibrating mirror 122 and the Y-axis vibrating mirror 123 will swing a certain angle according to the conversion ratio of a certain voltage and an angle, thereby achieving the purpose of changing the path of the laser beam 129, so that the laser beam 129 can be used for continuous spot welding and seam welding in different areas of the same plane. Because the laser beam 129 is moved in the welding process and is no longer a previous workbench or clamp, the speed is higher, the precision is higher, and the time cost and the labor cost are greatly saved.
Meanwhile, in this embodiment, a semi-transparent mirror 124 is further provided, and the semi-transparent mirror 124 can reflect the laser beam 129 emitted from the Y-axis vibrating mirror 123 to form welding laser and detection laser, where the welding laser is used to weld the steel strip 200 to be welded, and the detection laser is used to enter the visual detection mechanism 126 to detect, and at the same time, the visual detection mechanism 126 can also photograph small holes (i.e. welding holes) in the welding process, determine the welding effect by using the image information data, and feed back to the control mechanism 140 to control and adjust the laser power of the laser 121. In this embodiment, the arrangement of the semi-transparent mirror 124 and the visual detection mechanism 126 greatly enhances the welding accuracy and welding effect in the movement process.
Referring to fig. 3, the control mechanism 140 includes a galvanometer deflection control module 141, a motion mechanism control module 142, and a laser power control module 143, the galvanometer deflection control module 141 is electrically connected with the X-axis galvanometer 122 and the Y-axis galvanometer 123 respectively to control the deflection of the X-axis galvanometer 122 and the Y-axis galvanometer 123, the motion mechanism control module 142 is electrically connected with the motion mechanism 130, the laser power control module 143 is connected with the laser 121 through a welding optical fiber 1211, the visual detection mechanism 126 is electrically connected with the laser power control module 143 through a visual detection optical fiber 1261 to regulate the power of the laser emitted by the laser 121 according to the signal fed back by the visual detection mechanism 126, and the power of the laser emitted by the laser 121 is 2000-8000W. In this embodiment, the control mechanism 140 is used to control deflection of the galvanometer, and control the movement mode of the movement mechanism 130 at the same time, so that the galvanometer laser welding head 120 connected to the movement mechanism 130 can move along with the steel strip 200 to be welded, and can weld the moving steel strip 200 to be welded under the condition of no stop, and due to the high-speed processing of laser, the steel strip welding seam 210 with a small heat affected zone is formed, the strip is not easy to break, and meanwhile, the non-contact long-distance high-speed welding is realized by using the optical characteristic of laser.
Referring to fig. 4 and 5, the conveying mechanism 150 includes a housing 151, and an active conveying member 152, a passive conveying member 153 and a conveying motor disposed in the housing 151, wherein the passive conveying member 153 is a plurality of roller structures and is uniformly distributed in the housing 151, and the active conveying member 152 is connected with the conveying motor. The conveying mechanism 150 further includes a supporting member 154, where the supporting member 154 is disposed in the housing 151 and the lower conveying mechanism 150 located on the passive conveying member 153 further includes a thickness detecting member (not shown) for detecting the thickness of the steel strip 200 to be welded, and the thickness detecting member may be, for example, a laser range finder, and may be disposed in the direction of the active conveying member 152 near the feeding direction, so as to detect the thickness of the steel strip 200 to be welded entering the conveying mechanism 150.
In this embodiment, the conveying mechanism 150 is used to convey the steel strip 200 to be welded, and the thickness detecting member is used to detect the thickness of the steel strip 200 to be welded, where the thickness of the steel strip 200 to be welded is 0.5-5mm, butt welding is used when the thickness is large, and lap welding is used when the thickness is small. The active conveying member 152 rotates under the driving of the driving motor, so as to drive the steel strip 200 to be welded to move, and the passive conveying member 153 mainly plays roles of reducing friction and supporting, and is of a structure of an unpowered roller. When the thickness detecting piece detects that the thickness of the steel strip 200 to be welded is smaller, the active conveying piece 152 can drive the steel strip 200 to be welded to ascend, so that the subsequent steel strip 200 to be welded is driven to be lapped above the previous steel strip 200 to be welded, the overlapped area is welded by the vibrating mirror laser welding head 120, the welding speed can reach 2-4.0m/min, high-speed and high-precision welding is realized, and the active conveying piece 152 drives the steel strip 200 to be welded to advance or ascend by adopting the existing structure.
Example 2
The present embodiment provides a high-speed laser welding method for continuous steel production, which uses the high-speed laser welding system 100 for continuous steel production provided in embodiment 1 to perform welding, and specifically comprises the following operations:
the length of the steel strip 200 to be welded with 0.8mm is 2m, lap welding is adopted (as shown in fig. 6), the moving speed of a welding head is 2m/min, and the welding power is 3.8kw. The phenomenon of strip breakage does not occur in the subsequent rolling process of the steel strip.
Example 3
The present embodiment provides a high-speed laser welding method for continuous steel production, which uses the high-speed laser welding system 100 for continuous steel production provided in embodiment 1 to perform welding, and specifically comprises the following operations:
the length of the steel strip 200 to be welded is 1.2mm, the length is 2m, butt welding is adopted (as shown in fig. 7), the moving speed of a welding head is 2m/min, and the welding power is 2.4kw. The phenomenon of strip breakage does not occur in the subsequent rolling process of the steel strip.
In summary, the embodiment of the present invention provides a high-speed laser welding system 100 for continuous steel production, which uses a conveying mechanism 150 to drive a steel strip 200 to be welded to move, and uses a moving mechanism 130 to drive a galvanometer laser welding head 120 to move back and forth in synchronization with the steel strip 200 to be welded, and the galvanometer laser welding head 120 can also realize up-down and left-right movement, and at the same time, an X-axis galvanometer 122 and a Y-axis galvanometer 123 in the galvanometer laser welding head 120 can deflect to change the path of a laser beam, so that laser can continuously spot-weld and seam-weld in different areas of the same plane, high-speed and high-precision welding is realized in the moving process, and in order to ensure the welding accuracy in the moving process, a semi-transparent mirror 124 and a visual detection mechanism 126 are further provided in the galvanometer laser welding head 120, and the semi-transparent mirror 124 can reflect laser emitted from the Y-axis galvanometer 123 to form welding laser and detection laser, wherein the welding laser is used for realizing welding of the steel strip 200 to enter the visual detection mechanism 126, and at the same time, the visual detection mechanism 126 can also realize continuous spot-welding and seam-welding in the same time, the welding process can realize high-speed and high-precision welding, namely, the image feedback information in the welding process is controlled by using a laser feedback device 121, and the welding effect is controlled in the welding process.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The high-speed laser welding system for continuous steel rolling production is characterized by comprising a mounting frame, a vibrating mirror laser welding head, a moving mechanism, a control mechanism and a conveying mechanism for driving a steel belt to be welded to move;
the mounting frame is used for mounting the moving mechanism, the moving mechanism is positioned above the conveying mechanism and can perform three-dimensional movement relative to the conveying mechanism, and the galvanometer laser welding head is mounted on the moving mechanism and moves synchronously along with the moving mechanism;
the vibrating mirror laser welding head is provided with a laser, an X-axis vibrating mirror, a Y-axis vibrating mirror, a semi-transparent mirror, a nozzle and a visual detection mechanism, wherein the semi-transparent mirror is arranged below the Y-axis vibrating mirror to divide laser into welding laser and detection laser, the welding laser faces the steel strip to be welded through the nozzle, the detection laser faces the visual detection mechanism, and the visual detection mechanism is used for judging the welding effect by collecting small hole image information data in the welding process;
the control mechanism comprises a galvanometer deflection control module, a motion mechanism control module and a laser power control module, wherein the galvanometer deflection control module is respectively and electrically connected with the X-axis galvanometer and the Y-axis galvanometer to control deflection of the X-axis galvanometer and the Y-axis galvanometer, the motion mechanism control module is electrically connected with the motion mechanism, and the vision detection mechanism is electrically connected with the laser power control module to regulate and control the power of laser emitted by the laser according to signals fed back by the vision detection mechanism.
2. The high-speed laser welding system for continuous steel production according to claim 1, wherein the information feedback frequency of the visual inspection mechanism is 500-1000Hz.
3. The high-speed laser welding system for continuous steel production according to claim 1, wherein the laser emits laser light having a power of 2000-8000W.
4. The high-speed laser welding system for continuous steel production according to claim 1, wherein the galvanometer laser welding head is further provided with a welding field lens and a detection field lens, the welding field lens is arranged between the welding laser and the nozzle, and the detection field lens is arranged between the detection laser and the visual detection mechanism.
5. The high-speed laser welding system for continuous steel production according to claim 1, wherein the movement mechanism comprises an X-axis sliding rail, a Y-axis sliding rail and a Z-axis sliding rail, the X-axis sliding rail is mounted on the mounting frame, the Z-axis sliding rail is mounted on the X-axis sliding rail and can slide left and right relative to the X-axis sliding rail, the galvanometer laser welding head is mounted on the Z-axis sliding rail and can move up and down relative to the Z-axis sliding rail, and the mounting frame is mounted on the Z-axis sliding rail and can move back and forth relative to the Z-axis sliding rail.
6. The high-speed laser welding system for continuous steel production according to claim 1, wherein the conveying mechanism comprises a shell, and an active conveying member, a passive conveying member and a conveying motor which are arranged in the shell, wherein the passive conveying member is of a plurality of roller structures and is uniformly distributed in the shell, and the active conveying member is connected with the conveying motor.
7. The high speed laser welding system for continuous steel production of claim 6, wherein the transfer mechanism further comprises a support disposed within the housing below the passive transfer.
8. The high-speed laser welding system for continuous steel production according to claim 6, wherein the conveying mechanism further comprises a thickness detecting member for detecting the thickness of the steel strip to be welded.
9. A high-speed laser welding method for continuous steel production, characterized in that the high-speed laser welding system for continuous steel production according to any one of claims 1 to 8 is used for high-speed laser welding of steel strips to be welded which move with the conveying mechanism.
10. The high-speed laser welding method for continuous steel production according to claim 9, wherein the thickness of the steel strip to be welded is 0.5-5mm, and the welding speed is 2-4.0m/min.
CN202311761626.XA 2023-12-19 2023-12-19 High-speed laser welding system and method for continuous steel production Pending CN117506145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311761626.XA CN117506145A (en) 2023-12-19 2023-12-19 High-speed laser welding system and method for continuous steel production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311761626.XA CN117506145A (en) 2023-12-19 2023-12-19 High-speed laser welding system and method for continuous steel production

Publications (1)

Publication Number Publication Date
CN117506145A true CN117506145A (en) 2024-02-06

Family

ID=89751461

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311761626.XA Pending CN117506145A (en) 2023-12-19 2023-12-19 High-speed laser welding system and method for continuous steel production

Country Status (1)

Country Link
CN (1) CN117506145A (en)

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