CN105750743A - Laser welding device and method based on laser cleaning pretreatment - Google Patents
Laser welding device and method based on laser cleaning pretreatment Download PDFInfo
- Publication number
- CN105750743A CN105750743A CN201610336515.8A CN201610336515A CN105750743A CN 105750743 A CN105750743 A CN 105750743A CN 201610336515 A CN201610336515 A CN 201610336515A CN 105750743 A CN105750743 A CN 105750743A
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- laser
- welded
- welding
- cleaning
- sheet metal
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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
- B23K26/60—Preliminary treatment
-
- 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
-
- 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
- B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to a laser welding device and method based on laser cleaning pretreatment.The device comprises a conveying belt, a clamping and adsorption device, a laser cleaning device and a laser welding device.A laser cleaning work region is arranged on the front portion of the conveying belt, and a laser welding work region is arranged on the rear portion of the conveying belt.The laser cleaning device is arranged in the laser cleaning work region, and the laser welding device is arranged in the laser welding work region.The clamping and adsorption device used for fixing butt joint machining welding openings of two to-be-welded metal sheets is adsorbed on the conveying belt.Due to the fact that the laser cleaning process is used for conducting rust and paint removal treatment on the surfaces of to-be-welded materials before welding, and the quality of welded joint seams can be improved.The laser cleaning device and the laser welding device are integrated, the laser cleaning work region and the laser welding work region can be accurately positioned through the machine vision image acquisition and positioning technology, automatic cleaning and welding are achieved, the working efficiency and stability of the device are improved, and therefore welding efficiency is improved.
Description
Technical field
The present invention relates to a kind of laser weld, a kind of specifically laser soldering device adopting laser cleaning pre-treating technology and method.
Background technology
Along with the fast development of industrial lasers industry, market is more and more higher to the requirement of laser processing technology, and as the Joining Technology of a kind of relative new, laser welding technology has huge potential of innovation.The laser welding technology application prospect in industrial processes field is increasingly extensive, and technology is increasingly mature, it has also become integrate the advanced manufacturing methods of multiple subject technologies such as light, mechanical, electrical, computer and material.Due to laser weld meet high-quality, low consumption, efficiently, cleaning, the technological development direction such as heat affected area is narrow, joint distortion is little, flexible operation, 21 century will be increasingly becoming the epoch of laser weld, and the development prospect of laser weld is known no measure.
For pollutant such as the sull on laser welded material surface, paint, must go to before weldering remove, otherwise can directly influence welding effect.General simplest method is mechanical grinding, as with sand paper, steel wire lump etc. is at surface finish, ultrasonic wave water washing etc., but mechanical means generally all removes unclean.Or use chemical removal method, as removed oxide-film with strong acid and strong base, processes oxide layer with coupling agent pretreatment liquid, with acetone wipe oil etc..But chemical removal method relative program is numerous and diverse, unfavorable environmental protection.
The advantage of laser cleaning technique is apparent from compared with conventional clean technology: (l), when not damaging substrate, cleans the granule of substrate surface micron and submicron-scale effectively；(2) due to the flexible adjustability of optical maser wavelength, pulsewidth, spot size, action time and model of action etc., it is applicable to various cleaning object, and can realize being accurately positioned cleaning；(3) poisonous and harmful reagent is not used, free from environmental pollution, health is lossless, it is a kind of " green " free of contamination cleaning way；(4) contactless model of action, will not bring additional pollution and damage to substrate；(5) large spot, scan mode can being adopted to clean, cleaning efficiency is high；(6) a kind of probability is provided for on-line cleaning；(7) available fiber-optic transfer, it is achieved clean at a distance, clean to the place that traditional approach can not arrive；(8) cost is low etc..Therefore, laser cleaning technique has the great potential cleaning metal material waste material, and has lot of advantages compared to other cleaning technique.
Summary of the invention
The main purpose of the present invention is to provide a kind of laser soldering device based on laser cleaning pre-treatment and method, for significantly improving the weldquality of welding.
This invention address that above-mentioned technical problem the technical scheme is that a kind of laser soldering device based on laser cleaning pre-treatment, including conveyer belt, clamping and adsorbent equipment, laser cleaner, laser soldering device, above conveyer belt, front portion is provided with laser cleaning working area, rear portion is provided with laser weld working area, laser cleaning works built with laser cleaner, and laser weld working area is built with laser soldering device；Clamping and the adsorbent equipment of processing soldering opening for the docking fixing two pieces of sheet metals to be welded it is adsorbed with above described conveyer belt；
Laser cleaner is by Vision Builder for Automated Inspection, pulse laser, beam delivery system A, light beam focusing system A, control system A forms, Vision Builder for Automated Inspection is provided with probe, probe is for gathering the image information of the sheet metal to be welded entering laser cleaning working area and welding job region, probe passes through light beam focusing system A, beam delivery system A connects pulse laser, for being transferred to pulse laser by light beam after image information being focused on, Vision Builder for Automated Inspection connects pulse laser by control system A, region for controlling the pulse laser sheet metal to be welded splicing to entering laser cleaning working area carries out automatic cleaning treatment.
Laser soldering device is made up of continuous wave laser, beam delivery system B, light beam focusing system B, control system B, plumb joint, continuous wave laser passes through beam delivery system B, light beam focusing system B connecting welding head, continuous wave laser connects Vision Builder for Automated Inspection by control system B, and Vision Builder for Automated Inspection is welded by the control system B sheet metal to be welded controlling to enter the laser weld working region specified.
Laser soldering device also includes protective gas bottle and protective gas pipeline, and the outlet of described protective gas pipeline is arranged on the commissure of metallic plate to be welded.
A kind of method for laser welding based on laser cleaning pre-treatment, comprises the following steps:
Step 1: fixing workpiece, processes soldering opening with clamping and adsorbent equipment by the docking of two pieces of sheet metals to be welded and fixes, and will clamp and adsorbent equipment is fixing on a moving belt, and set sheet metal transfer rate to be welded；
Step 2: laser cleaning pre-treatment, Vision Builder for Automated Inspection gather sheet metal to be welded image information, when sheet metal to be welded be sent to appointment cleaning positions region time, pulse laser automatically turns on, metal sheet surface to be welded is eliminated rust, paint-removing clean；
Step 3: laser weld, Vision Builder for Automated Inspection continues to gather the image information of sheet metal to be welded, and when sheet metal to be welded is sent to appointment region, welding position, under the protection of protective gas, continuous wave laser automatically turns on, and sheet metal to be welded is welded.
In above-mentioned steps, sheet metal to be welded is transferred to appointment cleaning positions region and specifies region, welding position, is obtained at the displaced position transmitted on band by Vision Builder for Automated Inspection detecting real-time sheet metal to be welded.
In above-mentioned steps 3, laser weld adopts the laser non-penetrating welding of straight line welding.
The present invention at least includes following beneficial effect:
Before welding material surface to be welded being carried out rust-removing paint-removing process owing to have employed laser cleaning technique, it can improve welding point weldquality；
Owing to have employed laser cleaning and laser weld integrated apparatus, and by machine vision image acquisition and location technology, the working region that can be accurately positioned laser cleaning and weld, realize automatization to clean and welding, improve work efficiency and the stability of this device, thus improving the efficiency of welding, economic benefit is obvious, has broad application prospects.
Accompanying drawing explanation
Fig. 1 is the structural representation of the laser soldering device of the laser cleaning pre-treatment of the present invention；
Fig. 2 is the flow diagram of the method for laser welding of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
As shown in Figure 1; a kind of laser soldering device based on laser cleaning pre-treatment, including conveyer belt 1, clamping and adsorbent equipment 2, Vision Builder for Automated Inspection 3, laser cleaner 4, pulse laser 5, beam delivery system A6, light beam focusing system A7, controls system A8, probe 9, laser soldering device 10, continuous wave laser 11, beam delivery system B12, light beam focusing system B13, control system B14, plumb joint 15, protective gas bottle 16 and protective gas pipeline.
Conveyer belt 1 front portion above is provided with laser cleaning working area, and rear portion is provided with laser weld working area, and laser cleaning works built with laser cleaner 4, and laser weld working area is built with laser soldering device 10；Clamping and the adsorbent equipment 2 of processing soldering opening for the docking fixing two pieces of sheet metals to be welded it is adsorbed with above described conveyer belt 1.
Laser cleaner 4 is by Vision Builder for Automated Inspection 3, pulse laser 5, beam delivery system A6, light beam focusing system A7, control system A8 forms, Vision Builder for Automated Inspection 3 is provided with probe 9, probe 9 is for gathering the image information of the sheet metal to be welded entering laser cleaning working area and welding job region, probe 9 is by light beam focusing system A7, beam delivery system A6 connects pulse laser 5, for being transferred to pulse laser 5 by light beam after image information being focused on, Vision Builder for Automated Inspection 3 connects pulse laser 5 by control system A8, region for controlling the pulse laser 5 sheet metal to be welded splicing to entering laser cleaning working area carries out automatic cleaning treatment.
Laser soldering device 10 is made up of continuous wave laser 11, beam delivery system B12, light beam focusing system B13, control system B14, plumb joint 15, continuous wave laser 11 is by beam delivery system B12, light beam focusing system B13 connecting welding head 15, continuous wave laser 11 connects Vision Builder for Automated Inspection 3 by control system B14, and Vision Builder for Automated Inspection 3 is welded by the control system B14 sheet metal to be welded controlling to enter the laser weld working region specified.
Laser soldering device 10 also includes protective gas bottle 16 and protective gas pipeline, and the outlet of described protective gas pipeline is arranged on the commissure of metallic plate to be welded.
As in figure 2 it is shown, a kind of method for laser welding based on laser cleaning pre-treatment, it is embodied as step as follows:
Two pieces of sheet metal to be welded clampings and adsorbent equipment 2 are fixed on conveyer belt 1, line speed is adjusted according to cleaning speed and speed of welding, Vision Builder for Automated Inspection 3 starts to gather image information, cleaning region is specified when metallic plate to be welded arrives, Vision Builder for Automated Inspection 3 sends instruction, laser cleaner 4 automatically turns on, the region that metallic plate to be welded splices is carried out processing by the track run along conveyer belt 1, cleaned metallic plate to be welded directly continues forward with conveyer belt 1, Vision Builder for Automated Inspection 3 continues to gather image information, welding job region is specified when metallic plate to be welded arrives, Vision Builder for Automated Inspection 3 sends instruction, laser soldering device 10 automatically turns on, docking metallic plate is welded, in welding process, protective gas is provided by protective gas bottle 16 and protective gas pipeline.
In the above-mentioned method for laser welding based on laser cleaning pre-treatment, sheet metal transfer rate to be welded is for meeting cleaning speed and speed of welding, the optimum velocity in conveying calculated simultaneously.
In the above-mentioned method for laser welding based on laser cleaning pre-treatment, sheet metal to be welded is transferred to appointment cleaning positions region, is obtained at the displaced position transmitted on 1 by Vision Builder for Automated Inspection 3 detecting real-time workpiece.
In the above-mentioned method for laser welding based on laser cleaning pre-treatment, sheet metal to be welded is transferred to appointment region, welding position, is obtained at the displaced position transmitted on 1 by Vision Builder for Automated Inspection 3 detecting real-time workpiece.
In the above-mentioned method for laser welding based on laser cleaning pre-treatment, laser weld is welded suitable in the laser non-penetrating of straight line welding.
Claims (5)
1. the laser soldering device based on laser cleaning pre-treatment, including conveyer belt (1), clamping and adsorbent equipment (2), laser cleaner (4), laser soldering device (10), it is characterized in that: described conveyer belt (1) front portion above is provided with laser cleaning working area, rear portion is provided with laser weld working area, laser cleaning works built with laser cleaner (4), and laser weld working area is built with laser soldering device (10)；Clamping and the adsorbent equipment (2) of processing soldering opening for the docking fixing two pieces of sheet metals to be welded it is adsorbed with above described conveyer belt (1)；
nullDescribed laser cleaner (4) is by Vision Builder for Automated Inspection (3)、Pulse laser (5)、Beam delivery system A (6)、Light beam focusing system A (7)、Control system A (8) forms，Vision Builder for Automated Inspection (3) is provided with probe (9)，Probe (9) is for gathering the image information of the sheet metal to be welded entering laser cleaning working area and welding job region，Probe (9) is by light beam focusing system A (7)、Beam delivery system A (6) connects pulse laser (5)，For being transferred to pulse laser (5) by light beam after image information being focused on，Vision Builder for Automated Inspection (3) connects pulse laser (5) by control system A (8)，Region for controlling the pulse laser (5) the sheet metal to be welded splicing to entering laser cleaning working area carries out automatic cleaning treatment；
Described laser soldering device (10) is by continuous wave laser (11), beam delivery system B (12), light beam focusing system B (13), control system B (14), plumb joint (15) forms, continuous wave laser (11) is by beam delivery system B (12), light beam focusing system B (13) connecting welding head (15), continuous wave laser (11) connects Vision Builder for Automated Inspection (3) by control system B (14), Vision Builder for Automated Inspection (3) is welded by control system B (14) sheet metal to be welded controlling to enter the laser weld working region specified.
2. the laser soldering device based on laser cleaning pre-treatment according to claim 1; it is characterized in that: described laser soldering device (10) also includes protective gas bottle (16) and protective gas pipeline, the outlet of described protective gas pipeline is arranged on the commissure of metallic plate to be welded.
3., based on a method for laser welding for laser cleaning pre-treatment, comprise the following steps:
Step 1: fixing workpiece, with clamping and adsorbent equipment (2), the docking of two pieces of sheet metals to be welded is processed soldering opening to fix, to clamp and adsorbent equipment (2) will be fixed on conveyer belt (1), and set sheet metal transfer rate to be welded；
Step 2: laser cleaning pre-treatment, Vision Builder for Automated Inspection (3) gathers the image information of sheet metal to be welded, when sheet metal to be welded is sent to appointment cleaning positions region, pulse laser (5) automatically turns on, metal sheet surface to be welded is eliminated rust, paint-removing clean；
Step 3: laser weld; Vision Builder for Automated Inspection (3) continues to gather the image information of sheet metal to be welded; when sheet metal to be welded is sent to appointment region, welding position; under the protection of protective gas; continuous wave laser (11) automatically turns on, and sheet metal to be welded is welded.
4. the method for laser welding based on laser cleaning pre-treatment according to claim 3, it is characterized in that: in above-mentioned steps, sheet metal to be welded is transferred to appointment cleaning positions region and specifies region, welding position, is be with the displaced position on (1) to obtain by Vision Builder for Automated Inspection (3) detecting real-time sheet metal to be welded in transmission.
5. the method for laser welding based on laser cleaning pre-treatment according to claim 3, it is characterised in that: in above-mentioned steps 3, laser weld adopts the laser non-penetrating welding of straight line welding.
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| CN201610336515.8A CN105750743A (en) | 2016-05-20 | 2016-05-20 | Laser welding device and method based on laser cleaning pretreatment |
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| CN106271153A (en) * | 2016-08-29 | 2017-01-04 | 张家港华日法兰有限公司 | The welding procedure that a kind of welding quality is good |
| CN106346139A (en) * | 2016-10-11 | 2017-01-25 | 深圳市通发激光设备有限公司 | Unordered vision positioning marking system |
| CN106425094A (en) * | 2016-10-29 | 2017-02-22 | 广东金三甲精密科技有限公司 | Laser-hybrid-welding molding equipment for aluminum alloy mobile phone shell and molding process of laser-hybrid-welding molding equipment |
| CN107081312A (en) * | 2017-07-06 | 2017-08-22 | 武汉翔明激光科技有限公司 | A kind of laser cleaner and cleaning method |
| CN107413772A (en) * | 2017-04-19 | 2017-12-01 | 武汉纺织大学 | A kind of laser focal adaptive cleaning line |
| CN107570890A (en) * | 2017-10-11 | 2018-01-12 | 安徽百超激光科技有限公司 | A kind of laser automatic assembly line |
| CN107876979A (en) * | 2017-10-19 | 2018-04-06 | 江西恒动新能源有限公司 | A kind of power lithium-ion battery liquid injection port seals method for laser welding |
| CN108212947A (en) * | 2017-12-27 | 2018-06-29 | 武汉金顿激光科技有限公司 | Laser cleaning technique |
| CN108326484A (en) * | 2018-03-16 | 2018-07-27 | 西南交通大学 | The integrated welding welding system and its welding method of the preceding laser cleaning of weldering can be achieved |
| CN108422086A (en) * | 2018-03-16 | 2018-08-21 | 西南交通大学 | Integrated laser cleans the integrated welding welding system and its welding method with welding |
| CN108465933A (en) * | 2018-02-13 | 2018-08-31 | 深圳吉阳智能科技有限公司 | A kind of method and apparatus of laser welding foil and lug |
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| CN106271152A (en) * | 2016-08-29 | 2017-01-04 | 张家港华日法兰有限公司 | A kind of welding procedure of OCTG joint |
| CN106271153A (en) * | 2016-08-29 | 2017-01-04 | 张家港华日法兰有限公司 | The welding procedure that a kind of welding quality is good |
| CN106346139A (en) * | 2016-10-11 | 2017-01-25 | 深圳市通发激光设备有限公司 | Unordered vision positioning marking system |
| CN106425094A (en) * | 2016-10-29 | 2017-02-22 | 广东金三甲精密科技有限公司 | Laser-hybrid-welding molding equipment for aluminum alloy mobile phone shell and molding process of laser-hybrid-welding molding equipment |
| CN107413772A (en) * | 2017-04-19 | 2017-12-01 | 武汉纺织大学 | A kind of laser focal adaptive cleaning line |
| CN107081312A (en) * | 2017-07-06 | 2017-08-22 | 武汉翔明激光科技有限公司 | A kind of laser cleaner and cleaning method |
| CN107570890A (en) * | 2017-10-11 | 2018-01-12 | 安徽百超激光科技有限公司 | A kind of laser automatic assembly line |
| CN107570890B (en) * | 2017-10-11 | 2019-03-29 | 安徽百超激光科技有限公司 | A kind of laser automatic assembly line |
| CN107876979A (en) * | 2017-10-19 | 2018-04-06 | 江西恒动新能源有限公司 | A kind of power lithium-ion battery liquid injection port seals method for laser welding |
| CN108212947A (en) * | 2017-12-27 | 2018-06-29 | 武汉金顿激光科技有限公司 | Laser cleaning technique |
| CN108465933A (en) * | 2018-02-13 | 2018-08-31 | 深圳吉阳智能科技有限公司 | A kind of method and apparatus of laser welding foil and lug |
| CN108326484A (en) * | 2018-03-16 | 2018-07-27 | 西南交通大学 | The integrated welding welding system and its welding method of the preceding laser cleaning of weldering can be achieved |
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