CN115156660A - Auxiliary device and method for calibrating light beam in laser welding process - Google Patents
Auxiliary device and method for calibrating light beam in laser welding process Download PDFInfo
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- 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
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
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- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/005—Soldering by means of radiant energy
- B23K1/0056—Soldering by means of radiant energy soldering by means of beams, e.g. lasers, E.B.
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/42—Printed circuits
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Abstract
The invention provides an auxiliary device and a calibration method for light beam calibration in a laser welding process, which comprises a fixing device at the left side, a controllable lifting device, a laser calibration plate and a laser generator; controllable elevating gear includes: the laser calibration plate is used for being irradiated by laser of the laser generator before the laser generator irradiates materials to be welded and forming light spots, and the light spots are used for comparing the size of the materials to be welded and calibrating and adjusting the position of the laser generator according to a comparison result; the device can be flexibly adjusted to match the position and height of a material to be welded, an auxiliary reference object is provided for laser calibration, additional vertical height compensation is realized by adjusting the device and a laser to cooperatively move, light spot focusing misalignment caused by limitation of the shape and the working space of a workpiece to be welded is avoided, a laser calibration plate can not only provide accurate focusing comparison, but also can be flexibly replaced when used up, and the quality and consistency of a welded product are ensured.
Description
Technical Field
The invention belongs to the field of laser soldering, and particularly relates to a device and a method for welding and forming auxiliary calibration beams in a welding process by heating brazing filler metal with semiconductor laser.
Background
As the manufacturing level and the technical requirements of the integrated circuit industry are continuously increased, the SMT (Surface mounting technology) technology is moving towards miniaturization with high integration and high reliability. In the field of microelectronic packaging, in particular, in the interconnection of Printed Circuit Board (PCB) electronic components, laser soldering is an ideal soldering process to replace conventional wave soldering, reflow soldering and the like. The laser soldering has the characteristics that high-power laser can be generated to realize the transient melting of a local or micro area to complete soldering without high power, and the advantages of non-contact, easy control, excellent welding quality and the like enable the laser soldering to be widely applied to electronic packaging.
In the process of applying the laser soldering technology to the PCB surface welding interconnection, laser radiation heats preset brazing filler metal in a specific area, the brazing filler metal is melted when reaching the brazing temperature in a very short time, and the brazing filler metal is wetted with a substrate to form connection under the action of a brazing flux. As the size of the circuit element is smaller and smaller, the refinement requirement of the transmission line is higher and higher, and the beam waist size of the laser needs to be accurately matched with the area to be welded in the welding process so as to ensure the welding quality. The size of the light spot focused by the laser beam waist determines the heating area and the heating temperature which are acted on the brazing filler metal, the too large light spot causes energy dispersion to cause heating dislocation to burn the welding pad and the substrate, the too small light spot probably causes incomplete melting of the brazing filler metal due to too concentrated heating area, and the two conditions are not favorable for melting and wetting of the brazing filler metal to influence the welding quality of elements. In actual soldering of laser equipment, the adjustment of the area of a light spot is limited by the maximum distance and space of a mechanical movement shaft of the equipment, and due to invisibility of laser, no uniform and effective reference object exists in manual calibration after off-line shutdown, so that the vertical degree of freedom deviation of the light spot and a region to be welded is caused, and the welding quality and the standardized production of a welding machine are influenced finally.
Aiming at the problems in the prior art, the invention provides a device for assisting in adjusting the matching of a light spot and a brazing filler metal to be welded during laser soldering operation and a calibration method.
Disclosure of Invention
The invention aims to solve the technical problem of providing an auxiliary device and a method for laser soldering light beam calibration, wherein the auxiliary device can provide additional vertical height compensation to adapt to the height of a material to be welded, calibrate the laser beam to be matched with the area of a solder to be welded by comparing the size of a light spot, and provide effective reference of light beam focusing to solve the offset problem of laser welding, so that the welding quality and the processing efficiency are ensured.
In order to realize the purpose, the invention is realized by the following technical scheme:
an auxiliary device for light beam calibration in a laser welding process comprises a fixing device 1 on the left side, a controllable lifting device connected to the right side of the fixing device 1, a laser calibration plate 5 on the controllable lifting device, and a laser generator 6 above the laser calibration plate 5;
the fixing device 1 is laterally attached to a working platform during laser welding to fix the whole auxiliary device; controllable elevating gear includes: the device comprises a storage platform 2 and a lifting support 3 for controlling the storage platform 2 to move up and down, wherein a laser calibration plate 5 is placed on the storage platform 2, the laser calibration plate 5 is used for being welded with laser irradiation of a laser generator before the laser generator 6 irradiates a material to be welded and forming a light spot, and the light spot is used for comparing the size of the material to be welded and calibrating and adjusting the position of the laser generator according to a comparison result;
the calibration and adjustment process comprises the following steps: adjusting a lifting support 3 to enable a laser calibration plate 5 of a placement platform 2 and a material to be welded to keep the same plane height, adjusting the light beam focal length and the laser power of a laser generator 6 to enable the size of a light spot formed by laser irradiation on the laser calibration plate 5 to be consistent with the size of the material to be welded, keeping the light beam focal length and the laser power of the laser generator 6 unchanged after the light spot size and the laser power are consistent, translating the laser generator 6 to the position above the material to be welded, photographing the material to be welded through a camera of the laser generator 6 to obtain a photo of the material to be welded, obtaining the optimal welding height when the photo of the material to be welded is clear, completing a calibration adjustment process, starting formal welding operation on the material to be welded, and enabling the laser generator to irradiate the material to be welded; and if the photo of the material to be welded is not clear, repeating the calibration and adjustment process.
Preferably, a controllable knob 4 is arranged on the side surface of the lifting support 3, and the lifting support 3 is driven to move up and down by rotating the controllable knob 4.
Preferably, the fixing device 1 is a magnetic sticker or a vacuum chuck embedded in the left side of the auxiliary device, and is attached to the side of the metal working platform during laser welding.
Preferably, the controllable lifting device is one of a gear transmission device, a worm and worm gear transmission device, a lead screw transmission device, a hydraulic transmission device and a spring type compression lifting device.
Preferably, the height lifting range of the controllable lifting device is-50 to +50mm, and the height lifting range is used for compensating the difference between the height required by welding and the lifting height of the device;
and/or the minimum stepping unit of the lifting bracket lifting is 0.1mm.
Preferably, the controllable lifting device is internally provided with an electronic control unit, the electronic control unit is electrically connected with the computer, and the electronic control unit is integrated with the laser welding software.
Preferably, the platform 2 is square, and the edge of the platform is provided with a metal clip for fixing the laser calibration plate 5 to be flat.
Preferably, the laser calibration plate is a light-absorbing aluminum plate with a thickness of 0.1-0.2mm.
Preferably, the laser generator is a semiconductor laser, and the power does not exceed 100W.
The invention also provides a method for calibrating the light beam by using the auxiliary device, which comprises the following steps:
before a laser generator irradiates a material to be welded, an auxiliary device is fixed on the side face of an operation platform during laser welding through a fixing device 1, a lifting support 3 is adjusted to enable a laser calibration plate 5 of an object placing platform 2 to keep the same plane height with the material to be welded, the laser calibration plate 5 is placed on the object placing platform 2, laser of the laser generator 6 irradiates the laser calibration plate 5 to form a light spot, the light spot is compared with the size of the material to be welded, the size of the light spot formed by laser irradiation on the laser calibration plate 5 is enabled to be consistent with the size of the material to be welded by adjusting the light beam focal length and the laser power of the laser generator 6, the light beam focal length and the laser power of the laser generator 6 are kept unchanged after the light spot is consistent with the size of the material to be welded, the laser generator 6 is moved to the upper side of the material to be welded, a photo of the material to be welded is obtained through a camera arranged on the laser generator 6, the optimal welding height is obtained when the photo of the material to be welded is clear, a calibration adjusting process is completed, and the formal welding operation is started to be performed on the material to be welded, so that the material to be welded, and if the photo is unclear.
The invention has the following beneficial effects:
(1) The device can be flexibly adjusted to match the position and the height of a material to be welded, an auxiliary reference object is provided for laser calibration, additional vertical height compensation is realized by adjusting the device and the laser to cooperatively move, light spot focusing misalignment caused by the limitation of the shape and the operation space of a workpiece to be welded is avoided, the laser calibration plate can provide accurate focusing comparison, and can be flexibly replaced after use, and the quality and the consistency of a welded product are ensured.
(2) The device is simple and convenient, has small volume and high compatibility, and can be matched with a processing platform of any laser soldering equipment for use; the complex operation of frequent manual adjustment after the product is replaced due to startup reset, material welding requirement change and shutdown is simplified, the time and the test cost are saved, and the working efficiency of laser welding is improved.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention in elevation;
FIG. 2 is a schematic view of the device of the present invention in a configuration in which the lifting frame is raised to the uppermost position;
fig. 3 is a schematic diagram illustrating the effect of the calibration principle of the present invention.
Reference numerals are as follows: 1-fixing device, 2-object placing platform, 3-lifting support, 4-controllable knob, 5-laser calibration plate and 6-laser generator.
Detailed Description
The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Example 1
As shown in fig. 1, an auxiliary device for beam calibration in a laser welding process comprises a fixing device 1 on the left side, a controllable lifting device connected to the right side of the fixing device 1, a laser calibration plate 5 on the controllable lifting device, and a laser generator 6 above the laser calibration plate 5;
the fixing device 1 is laterally attached to a working platform during laser welding to fix the whole auxiliary device; controllable elevating gear includes: the device comprises a storage platform 2 and a lifting support 3 for controlling the storage platform 2 to move up and down, wherein a laser calibration plate 5 is placed on the storage platform 2, the laser calibration plate 5 is used for being welded with laser irradiation of a laser generator before the laser generator 6 irradiates a material to be welded and forming a light spot, and the light spot is used for comparing the size of the material to be welded and calibrating and adjusting the position of the laser generator according to a comparison result;
the calibration and adjustment process comprises the following steps: adjusting a lifting support 3 to enable a laser calibration plate 5 of a storage platform 2 and a material to be welded to keep the same plane height, adjusting the light beam focal length and the laser power of a laser generator 6 to enable the size of a light spot formed by laser irradiation on the laser calibration plate 5 to be consistent with the size of the material to be welded, keeping the light beam focal length and the laser power of the laser generator 6 unchanged after the light spot size and the laser power are consistent, translating the laser generator 6 to the position above the material to be welded, photographing the material to be welded through a camera of the laser generator 6 to obtain a photo of the material to be welded, obtaining the optimal welding height when the photo of the material to be welded is clear, completing a calibration and adjustment process and beginning formal welding operation on the material to be welded, and enabling the laser generator to irradiate the material to be welded; and if the photo of the material to be welded is not clear, repeating the calibration and adjustment process.
As shown in fig. 2, a controllable knob 4 is arranged on the side surface of the lifting bracket 3, and the lifting bracket 3 is driven to move up and down by rotating the controllable knob 4.
The fixing device 1 is a magnetic paste or a vacuum sucker embedded in the left side of the auxiliary device and is adsorbed on the side edge of the metal working platform during laser welding.
The controllable lifting device is one of a gear transmission device, a worm and worm wheel transmission device, a lead screw transmission device, a hydraulic transmission device and a spring type compression lifting device. The up-and-down movement of the lifting frame 3 can be realized by common mechanical or hydraulic devices, such as: the controllable lifting device is a gear transmission device, and the controllable knob 4 drives the lifting support 3 to move up and down through the matching of a gear pair; or the controllable lifting device is driven by a worm and a worm wheel, the controllable knob 4 is connected with the worm wheel to drive the worm to move up and down, and the worm is the lifting support 3; or the controllable lifting device is a hydraulic mechanism, the execution end of the hydraulic mechanism is a lifting support 3, and the controllable knob 4 controls the hydraulic pressure of the hydraulic mechanism, so that the execution end of the hydraulic mechanism, namely the lifting support 3, is adjusted to move up and down; or the controllable lifting device is a spring type compression lifting device, a spring is arranged on the controllable knob 4, and the lifting support 3 is adjusted to move up and down by adjusting the compression degree of the spring; since such a controllable lifting device is common in the prior art, it is not described herein again.
The height lifting range of the controllable lifting device is-50 to +50mm, and the height lifting device is used for compensating the difference between the height required by welding and the lifting height of the device;
and/or the minimum stepping unit of the lifting bracket lifting is 0.1mm.
The controllable lifting device is internally provided with an electronic control unit, the electronic control unit is electrically connected with a computer, and the electronic control unit is integrated with laser welding software.
The placement platform 2 is square, and the edge of the placement platform is provided with a metal clamping piece for fixing the laser calibration plate 5 to be flat.
The laser calibration plate is a light absorption aluminum sheet with the thickness of 0.1-0.2mm.
The laser generator is a semiconductor laser with power not exceeding 100W.
The present embodiment further provides a method for performing beam calibration using the auxiliary device, which includes:
before a laser generator irradiates a material to be welded, an auxiliary device is fixed on the side face of an operation platform during laser welding through a fixing device 1, a lifting support 3 is adjusted to enable a laser calibration plate 5 of an object placing platform 2 to keep the same plane height with the material to be welded, the laser calibration plate 5 is placed on the object placing platform 2, laser of the laser generator 6 irradiates the laser calibration plate 5 to form a light spot, the light spot is compared with the size of the material to be welded, the size of the light spot formed by laser irradiation on the laser calibration plate 5 is enabled to be consistent with the size of the material to be welded by adjusting the light beam focal length and the laser power of the laser generator 6, the light beam focal length and the laser power of the laser generator 6 are kept unchanged after the light spot is consistent with the size of the material to be welded, the laser generator 6 is moved to the upper side of the material to be welded, a photo of the material to be welded is obtained through a camera arranged on the laser generator 6, the optimal welding height is obtained when the photo of the material to be welded is clear, a calibration adjusting process is completed, and the formal welding operation is started to be performed on the material to be welded, so that the material to be welded, and if the photo is unclear.
Example 2
The embodiment provides an auxiliary device for light beam calibration in a laser welding process, working components of laser soldering equipment are divided into a laser generator matched with a CCD (charge coupled device) vision positioning system, a mechanical motion shaft and a transmission device and an operation platform to be welded, and the whole welding process comprises the steps of solder registration positioning, program file setting, laser parameter setting, welding and temperature quality monitoring. The embodiment mainly aims at providing improvement in the solder registration positioning link, and the principle is as follows: the external auxiliary device provides additional height compensation and provides effective reference for focusing, and when welding requirements and debugging modes change, the size and power of a pre-test light spot of the laser calibration plate are utilized, so that material loss is avoided, and the complex operation problem of manual registration is optimized.
Fig. 3 is a schematic diagram illustrating the principle effect of the auxiliary calibration in conjunction with the laser generator. Before welding materials, laser beam waists emitted by a laser are not matched with a target welding area due to factors such as resetting operation after starting up, difference of materials to be welded, welding demand change and the like, and welding quality effectiveness and consistency are guaranteed because welding spots are too large and too small and are not beneficial to melting and wetting of brazing filler metal. And because of the invisibility of the laser, the surface of the material to be welded cannot be directly detected to obtain the light spot deviation. The device is externally connected for auxiliary calibration, the lifting platform can be flexibly adjusted to match the actual material height, the CCD visual positioning system is used for visually observing the phase focusing definition and comparing the light spot size, and then the welding height after the deviation correction is determined is transferred to the position of the material to be welded to complete welding.
In the embodiment, the laser soldering equipment is used for soldering the solder wires of the printed circuit board, the surface of the PCB pad is soldered by the steel screen printing solder paste, and the width of the solder wire is 0.5cm. Because the stacking height and the surface form of the solder paste are different under the influence of the printing process and the environment, the problem that the difference between the size of a light spot and a circuit to be welded cannot be effectively calibrated in the actual welding process occurs. The auxiliary device and method for laser welding beam calibration in this embodiment are specifically implemented as follows, as shown in fig. 2:
the auxiliary device for the beam calibration in the laser welding process comprises: comprises a fixing device 1 at the left side, a controllable lifting device connected at the right side of the fixing device 1, a laser calibration plate 5 on the controllable lifting device, and a laser generator 6 above the laser calibration plate 5; the fixing device 1 is an embedded magnetic paste and is used for being fixed on metal on the side of a platform for placing a PCB to be welded.
Wherein, controllable elevating gear includes: the device comprises a storage platform 2 and a lifting support 3 for controlling the storage platform 2 to move up and down, wherein a laser calibration plate 5 is placed on the storage platform 2, the laser calibration plate 5 is used for being welded with laser irradiation of a laser generator before the laser generator 6 irradiates a material to be welded and forming a light spot, and the light spot is used for comparing the size of the material to be welded and calibrating and adjusting the position of the laser generator according to a comparison result;
the lifting system rotates clockwise to lift through a bottom knob and rotates anticlockwise to descend to control the lifting of the platform.
The laser calibration plate is a light absorption aluminum sheet, the surface of the object placing platform 2 is fixed with the light absorption aluminum sheet for testing the size of light spots through a metal clamping piece, and the height of the light absorption aluminum sheet is consistent with the height of the plane of the solder paste to be welded by adjusting the knob.
The embodiment also provides an auxiliary method for beam calibration in the laser welding process, which comprises the following steps: the laser is moved to a position right above a light absorption aluminum sheet, a focal length knob of the laser head is adjusted in a coordinated mode to enable the phase of the aluminum sheet observed by the CCD to be clear, the diameter of a light spot formed by laser on the aluminum sheet is adjusted to be about 0.5cm by combining laser parameters, the light spot is consistent with the area of a material to be welded, and the optimal welding height is obtained.
Keeping the light beam focal length and the laser power of the laser generator 6 unchanged, positioning the translation laser head to the position above a solder paste on the surface of a PCB to be welded, comparing the definition of a material phase through the CCD vision of laser equipment, finishing the calibration when a photo of a material to be welded is clear, beginning to carry out formal welding operation on the material to be welded, and enabling the laser generator to irradiate the material to be welded. And if the photo of the material to be welded is not clear, repeating the calibration and adjustment process.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. An auxiliary device of laser welding process beam calibration which characterized in that: comprises a fixing device (1) on the left side, a controllable lifting device connected to the right side of the fixing device (1), a laser calibration plate (5) on the controllable lifting device, and a laser generator (6) above the laser calibration plate (5);
the fixing device (1) is laterally attached to an operation platform during laser welding to fix the whole auxiliary device; controllable elevating gear includes: the device comprises a storage platform (2) and a lifting support (3) for controlling the storage platform (2) to move up and down, wherein a laser calibration plate (5) is placed on the storage platform (2), the laser calibration plate (5) is used for being welded with laser irradiation of a laser generator before the laser generator (6) irradiates materials to be welded and forming light spots, and the light spots are used for comparing the sizes of the materials to be welded and calibrating and adjusting the position of the laser generator according to a comparison result;
the calibration and adjustment process comprises the following steps: adjusting a lifting support (3) to enable a laser calibration plate (5) of a storage platform (2) and a material to be welded to keep the same plane height, adjusting the light beam focal length and the laser power of a laser generator (6), enabling the size of a light spot formed by laser irradiation on the laser calibration plate (5) to be consistent with the size of the material to be welded, keeping the light beam focal length and the laser power of the laser generator (6) unchanged after the light spot size and the laser power are consistent, translating the laser generator (6) to the position above the material to be welded, photographing the material to be welded through a camera of the laser generator (6) to obtain a photo of the material to be welded, obtaining the optimal welding height when the photo of the material to be welded is clear, completing a calibration adjustment process and starting formal welding operation on the material to be welded, and enabling the laser to irradiate the material to be welded; and if the photo of the material to be welded is not clear, repeating the calibration and adjustment process.
2. The laser welding process beam alignment assistance device of claim 1, wherein: the side surface of the lifting support (3) is provided with a controllable knob (4), and the lifting support (3) is driven to move up and down by rotating the controllable knob (4).
3. The laser welding process beam alignment assistance device of claim 1, wherein: the fixing device (1) is a magnetic paste or a vacuum sucker which is embedded in the left side of the auxiliary device and is adsorbed on the side edge of the metal working platform during laser welding.
4. The laser welding process beam alignment assistance apparatus of claim 1, wherein: the controllable lifting device is one of a gear transmission device, a worm and worm wheel transmission device, a lead screw transmission device, a hydraulic transmission device and a spring type compression lifting device.
5. The laser welding process beam alignment assistance apparatus of claim 1, wherein: the height lifting range of the controllable lifting device is-50 to +50mm, and the height lifting device is used for compensating the difference between the height required by welding and the lifting height of the device;
and/or the minimum stepping unit of the lifting bracket lifting is 0.1mm.
6. The laser welding process beam alignment assistance device of claim 1, wherein: the controllable lifting device is internally provided with an electronic control unit, the electronic control unit is electrically connected with a computer, and the electronic control unit is integrated with laser welding software.
7. The laser welding process beam alignment assistance apparatus of claim 1, wherein: the object placing platform (2) is square, and the edge of the object placing platform is provided with a metal clamping piece for fixing the laser calibration plate (5) to be flat.
8. The laser welding process beam alignment assistance device of claim 1, wherein: the laser calibration plate is a light absorption aluminum sheet with the thickness of 0.1-0.2mm.
9. The laser welding process beam alignment assistance device of claim 1, wherein: the laser generator is a semiconductor laser and has power not exceeding 100W.
10. A method of beam alignment using the aid of any one of claims 1 to 9, wherein:
before a laser generator irradiates a material to be welded, an auxiliary device is fixed on the side face of an operation platform during laser welding through a fixing device (1), a lifting support (3) is adjusted to enable a laser calibration plate (5) of an object placing platform (2) and the material to be welded to keep the same plane height, the laser calibration plate (5) is placed on the object placing platform (2), laser of a laser generator (6) irradiates the laser calibration plate (5) to form a light spot, the light spot is compared with the size of the material to be welded, the light spot formed by laser irradiation on the laser calibration plate (5) is enabled to be consistent with the size of the material to be welded by adjusting the light beam focal length and the laser power of the laser generator (6), the laser generator (6) is translated to the upper side of the material to be welded after the light spot is consistent with the size of the material to be welded, the optimal welding height is obtained when the photo of the material to be welded is clear, the adjustment process is finished, the material to be welded is calibrated, and the operation is formally adjusted if the laser irradiation process is not repeated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210898116.6A CN115156660A (en) | 2022-07-28 | 2022-07-28 | Auxiliary device and method for calibrating light beam in laser welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210898116.6A CN115156660A (en) | 2022-07-28 | 2022-07-28 | Auxiliary device and method for calibrating light beam in laser welding process |
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| DE202005010715U1 (en) * | 2005-07-06 | 2005-09-22 | Sikora Gmbh | Adjusting device for a flying laser welding head having a cassette receiver and an adjustable laser beam useful in sheet welding operations |
| CN101077624A (en) * | 2007-06-08 | 2007-11-28 | 江苏大学 | Novel method for laser welding of plastics |
| CN207155002U (en) * | 2017-07-21 | 2018-03-30 | 常州雷射激光设备有限公司 | A kind of laser facula size adjusting device |
| CN109986205A (en) * | 2019-04-26 | 2019-07-09 | 江阴德龙激光能源设备有限公司 | The penetration method for laser welding of solar cell bus bar |
| CN114088811A (en) * | 2021-11-16 | 2022-02-25 | 宝宇(武汉)激光技术有限公司 | Nondestructive testing method and system for laser variable-focus special-shaped workpiece |
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2022
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| DE202005010715U1 (en) * | 2005-07-06 | 2005-09-22 | Sikora Gmbh | Adjusting device for a flying laser welding head having a cassette receiver and an adjustable laser beam useful in sheet welding operations |
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