CN206200362U - A kind of laser soldering device for improving weldquality difference - Google Patents
A kind of laser soldering device for improving weldquality difference Download PDFInfo
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- CN206200362U CN206200362U CN201621201204.2U CN201621201204U CN206200362U CN 206200362 U CN206200362 U CN 206200362U CN 201621201204 U CN201621201204 U CN 201621201204U CN 206200362 U CN206200362 U CN 206200362U
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Abstract
The utility model provides a kind of laser soldering device for improving weldquality difference, it can effectively eliminate the difference because welding base metal, weld the difference of focal position, the difference of protection air-flow amount, weld the difference of the weldquality that difference of air draft flow etc. is brought, it includes laser generator, the laser generator is connected with controller, the controller is also associated with infrared temperature sensor, the laser generator transmission connection laser couplers, the laser couplers pass through beam expanding lens, focused in welding workpiece after focus lamp, the infrared temperature sensor is disposed in proximity to the focal spot of the welding workpiece.
Description
Technical field
The utility model is related to laser technology field, specially a kind of laser soldering device for improving weldquality difference.
Background technology
Laser is stimulated light emission, is, using radiation excitation light amplification principle, to be excited operation material and produce a kind of single
Color is high, the light of good directionality and high brightness, after being focused on through lens height, the high power density thermal source needed for supplying welding；Swash
Photocoagulation is the method that the heat produced by the laser beam for focusing on as energy bombardment weldment seam is welded, in Laser Welding
When connecing, welding energy waveform is typically set on laser, in the different time, export different laser energies, and in weldering
Deliver a child product when, the difference of welding quality can be caused due to factor not of the same race, such as：1st, when producing in enormous quantities, for same batch
Each soldering part, the welding energy waveform of output is the same, but for a batch of identical parts because plus
Chinese musical scale cun inconsistency, can cause weld seam mated condition different, and the difference that weld seam coordinates, can cause to absorb the difference of laser
It is different；2nd, for the part of different batches, because the difference of material property, weld seam also can be variant on laser activity is absorbed；3、
The cleannes of welding region piece surface are different, and the splashing produced during welding also can be inconsistent；4th, each soldering part is relative
It is different in the change in location of laser spot, cause laser different in the energy density of welding region, welding pool can be caused
Reaction severe degree is different, causes the difference of weld seam；The flowed fluctuation of protection gas, can influence the protection gas of weld seam when the 5th, welding
Atmosphere, causes the difference of weld seam；Air draft flow is unstable when the 6th, welding, and can influence protection gas shielded region and the weld seam of weld seam
Cooling velocity, cause the inconsistency of weld seam.
The content of the invention
Regarding to the issue above, the utility model provides a kind of laser soldering device for improving weldquality difference, and it can
Effectively eliminate because the difference of welding base metal, the welding difference of focal position, the difference of protection air-flow amount, welding air draft flow
The difference of the weldquality that difference etc. is brought.
Its technical scheme is a kind of such, laser soldering device for improving weldquality difference, and it includes that laser occurs
Device, it is characterised in that：The laser generator is connected with controller, and the controller is also associated with infrared temperature sensor,
The laser generator transmission connection laser couplers, the laser couplers are by focusing on welding after beam expanding lens, focus lamp
On workpiece, the infrared temperature sensor is disposed in proximity to the focal spot of the welding workpiece.
It is further characterized by, and the controller uses singlechip controller, the display interface connection of the controller
The output interface for having display, the controller is connected with two indicator lamps；
The laser welding time of the laser generator is at most 200MS.
The beneficial effects of the utility model are that laser couplers are focused in welding workpiece by after beam expanding lens, focus lamp,
Infrared temperature sensor is disposed in proximity to the focal spot of welding workpiece, then welding keyhole can be formed in welding workpiece, with
The movement of laser, forms welding pool in welding workpiece, and the metal of thawing forms weld seam, infrared temperature sensing after supercooling
The temperature value of measurement welding pool can be sent to controller by device, then controller can make real-time power signal according to feedback temperature
To laser couplers, the laser energy mould signal that subsequent laser generator is sent according to controller exports corresponding laser energy,
So as to effectively control the temperature of welding pool, and can effectively control welding quality, it is ensured that the weld seam uniformity of each part, and lead to
The temperature of feedback welding pool is crossed, can be eliminated because processing dimension is inconsistent, piece surface cleannes are inconsistent, welding base metal
The weld seam matter brought such as difference, the welding difference of focal position, the difference of protection air-flow amount, the difference of welding air draft flow
The difference of amount.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is electric control theory figure of the present utility model；
Fig. 3 is control flow chart of the present utility model.
Specific embodiment
As shown in Fig. 1 ~ Fig. 3, a kind of laser soldering device for improving weldquality difference, including laser generator 10, swash
Optical generator 10 is connected with controller 11, and between controller 11 and laser generator 10, by input/output interface, exchange is opened
Begin welding and end welding signal, and controller 11 is also associated with infrared temperature sensor 5, and infrared temperature sensor 5 can be measurement
Temperature value give controller 11 in analog quantity mode, laser generator 10 swashs by the transmission connection laser couplers 8 of optical fiber 9
By being focused in welding workpiece 2 after beam expanding lens 7, focus lamp 6, infrared temperature sensor 5 is disposed in proximity to welding to photo-coupler 8
The focal spot of workpiece 2, that is, focus at the focus point rear 2mm ~ 3mm positions of welding workpiece 2.
Controller 11 uses the display interface of singlechip controller, controller 11 to be connected with display, can be used to show red
The temperature value that outer temperature sensor 5 is measured；The output interface of controller 11 is connected with two LED lights, and one is work
Run indicator, another is malfunction indicator lamp.
Using the welding procedure of above-mentioned welder, it is comprised the following steps that：
（1）, laser generator 10 produce laser, be transferred to laser couplers 8 by optical fiber 9, it is inner defeated from laser couplers 8
By being changed into directional light after beam expanding lens 7, directional light is focused in welding workpiece 2 laser for going out by focus lamp 6；
（2）, by step（1）, welding keyhole 3 is formed with welding workpiece 2, with the movement of laser, in Welder
Welding pool 4 is formed on part 2, the metal of thawing forms weld seam 1 after supercooling；Wherein welding keyhole 3 is conducive to material to swashing
The absorption of light；Infrared temperature sensor 5 measures the temperature of welding pool 4
（3）, infrared temperature sensor 5 focus on the root of welding pool 4, i.e. distance welding keyhole 3 rear 2.5mm positions
Place, then the temperature value of measurement welding pool 4 is sent to controller 11, controller by infrared temperature sensor 5 with analog input
11 compare according to the temperature value of feedback with the temperature value of setting, export laser energy signal to laser generator 10, subsequent laser
The laser energy mould signal that generator 10 is sent according to controller, exports corresponding laser energy.
In step（3）In, its specific rate-determining steps is：
（a）, system initialization, set temperature climbing curve and desired temperature；
（b）, weld start when because not forming welding pool 4 also, infrared temperature sensor 5 measurement temperature letter
Number it is not the temperature of welding pool 4, then controller 11 sets output laser energy signal according to certain climbing curve, its climbing
Curve is specially extension over time, and the curve that temperature is stepped up, the feedback temperature signal of infrared temperature sensor 5 refreshes
Temperature and status display；
（c）If, weld interval be not up to 200MS, it refers to climbing time up to 200MS, or the temperature for measuring
The welding temperature value of value not up to setting, is returned to step（b）It is middle to continue to measure output, otherwise just carry out next step；
（d）, infrared temperature sensor 5 continue feedback temperature signal, refresh temperature and status display, according to setting welding
Temperature, the laser energy that controller 11 is needed using PID regulation outputs；
（e）If, the laser welding time arrive, its laser welding time is namely setting temperature from starting to be welded to welding
The time of end, the output of controller 11 stops welding signal, and laser stops, otherwise return to step（d）In continue to output.
Claims (3)
1. it is a kind of improve weldquality difference laser soldering device, it includes laser generator, it is characterised in that：The laser
Generator is connected with controller, and the controller is also associated with infrared temperature sensor, the laser generator transmission connection
Laser couplers, the laser couplers are focused in welding workpiece by after beam expanding lens, focus lamp, the infrared temperature sensing
Device is disposed in proximity to the focal spot of the welding workpiece.
2. it is according to claim 1 it is a kind of improve weldquality difference laser soldering device, it is characterised in that the control
Device processed uses the display interface of singlechip controller, the controller to be connected with display, and the output interface of the controller connects
It is connected to two indicator lamps.
3. it is according to claim 1 it is a kind of improve weldquality difference laser soldering device, it is characterised in that it is described swash
The laser welding time of optical generator is at most 200MS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621201204.2U CN206200362U (en) | 2016-11-08 | 2016-11-08 | A kind of laser soldering device for improving weldquality difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621201204.2U CN206200362U (en) | 2016-11-08 | 2016-11-08 | A kind of laser soldering device for improving weldquality difference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206200362U true CN206200362U (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621201204.2U Active CN206200362U (en) | 2016-11-08 | 2016-11-08 | A kind of laser soldering device for improving weldquality difference |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271138A (en) * | 2016-11-08 | 2017-01-04 | 无锡科技职业学院 | A kind of laser soldering device improving weldquality difference and welding procedure thereof |
| CN108284274A (en) * | 2018-04-26 | 2018-07-17 | 深圳市大鹏激光科技有限公司 | A kind of welding temperature closed-loop control type laser tin soldering machine |
| CN114289871A (en) * | 2022-02-10 | 2022-04-08 | 深圳市紫宸激光设备有限公司 | Intelligent laser welding machine with purifier |
-
2016
- 2016-11-08 CN CN201621201204.2U patent/CN206200362U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271138A (en) * | 2016-11-08 | 2017-01-04 | 无锡科技职业学院 | A kind of laser soldering device improving weldquality difference and welding procedure thereof |
| CN106271138B (en) * | 2016-11-08 | 2018-06-19 | 无锡科技职业学院 | A kind of laser soldering device and its welding procedure for improving weldquality difference |
| CN108284274A (en) * | 2018-04-26 | 2018-07-17 | 深圳市大鹏激光科技有限公司 | A kind of welding temperature closed-loop control type laser tin soldering machine |
| CN114289871A (en) * | 2022-02-10 | 2022-04-08 | 深圳市紫宸激光设备有限公司 | Intelligent laser welding machine with purifier |
| CN114289871B (en) * | 2022-02-10 | 2023-09-19 | 深圳市紫宸激光设备有限公司 | Intelligent laser welding machine with purifier |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201221 Address after: 214400 907, block a, 159 Chengjiang Middle Road, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: Wuxi langlin metal material technology Co.,Ltd. Address before: New District Wuxi city Jiangsu province 214028 Xi Road No. 8 Patentee before: WUXI PROFESSIONAL College OF SCIENCE AND TECHNOLOGY |