CN201511214U - Laser welding device of power type lithium ion battery safety cap - Google Patents
Laser welding device of power type lithium ion battery safety cap Download PDFInfo
- Publication number
- CN201511214U CN201511214U CN 200920236609 CN200920236609U CN201511214U CN 201511214 U CN201511214 U CN 201511214U CN 200920236609 CN200920236609 CN 200920236609 CN 200920236609 U CN200920236609 U CN 200920236609U CN 201511214 U CN201511214 U CN 201511214U
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- ion battery
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Abstract
The utility model discloses a laser welding device of a power type lithium ion battery safety cap, which comprises a PC control system, wherein the PC control system is respectively connected with a laser device system used for emitting laser, a vibrating mirror scanning system which can conduct and focus the laser emitted by the laser device and a work fixture system used for clamping and controlling the action of workpieces. The laser welding device of the power type lithium ion battery safety cap realizes automatic production via the cooperation of the PC control system, the laser device system, the vibrating mirror scanning system and the work fixture system, overcomes the shortcomings of low welding speed, poor welding effect and low qualification rate of the prior art, can ensure the product quality and efficiency, can realize mass production, and can meet the requirements of people on high-quality power type lithium ion batteries. A video monitoring system can be arranged to visually monitor the welding process and guarantee the welding quality.
Description
Technical field
The utility model relates to a kind of welding equipment, particularly a kind of laser welding apparatus that is used at the power-type lithium ion battery safe cap.
Background technology
At present, the explosion-proof combination safe cap that domestic power-type lithium ion battery uses is a sub-assembly, mainly is made up of upper cap, PTC overcurrent protection sheet, explosion-proof hemisphere face aluminium film, lower shoe.Lower shoe and anode ear are welded to connect, and are sheet and the outside transition that is connected, and are connected with explosion-proof hemisphere aluminium film spot weldering.Explosion-proof hemisphere aluminium film has two big functions, the one, when inner pressure of battery greatly behind certain value, become outside protrusion after the curved surface that concaves is stressed, the pad drawing crack of explosion-proof hemisphere face aluminium film and lower shoe, lug is disconnected, battery and the extraneous open circuit that forms, the over-charge protective function of battery cap begins effect; The 2nd, when inner pressure of battery increase to surpass the stressed limit in explosion-proof aluminium film indentation place, explosion-proof aluminium film rupture, battery is opened, and cell internal pressure is released from rent.The drawing crack disconnection of explosion-proof hemisphere face aluminium film pad is relevant with the size that pad area size and hemisphere face begin deformation force, it is 1.3-1.5MPa that common combination cover cap draws back pressure, the rupture pressure disc opening pressure is 2.0-2.2MPa, so the performance of pad has conclusive effect to the security of explosion-proof combination safe cap; Simultaneously, in lithium battery design,, guarantee that connector does not generate heat under big electric current, must guarantee that the explosion-proof hemisphere face aluminium film on the safe cap and the pad of lower shoe have enough areas in order to reduce cell resistance.Therefore, must select suitable welding procedure and pad area during preparation combination safe cap, both play the safeguard protection effect, have enough areas again and satisfy the needs that the big electric current of electrokinetic cell passes through.But, the present special equipment that does not also have the safe cap laser weld, and existing manufacturing technique can not guarantee the weld strength and the contact area of the pad of aluminium film and lower shoe, and efficient is lower, can not satisfy the demand of people to lithium ion battery.
The utility model content
In order to solve the above problems, the purpose of this utility model is to provide a kind of power-type lithium ion safe cap laser welding apparatus, it can guarantee the weld strength and the contact area of the pad of aluminium film and lower shoe, and has automaticity height, characteristics that production efficiency is high.
The technical scheme that the invention for solving the technical problem adopted is:
A kind of power-type lithium ion battery safe cap laser welding apparatus, bag PC control system, described PC control system is connected with respectively
Optical Maser System is used to launch laser;
Galvanometer scanning system, the laser that it can send laser instrument scans, conducts and focuses on;
And the frock clamp system, it is used for adding holds and controls workpiece action.
As improvement of the technical scheme, be provided with control card in the described PC control system, described PC control system is carried out signal by this control card with Optical Maser System, galvanometer scanning system and frock clamp system and is connected.
As further improvement in the technical proposal, described PC control system also is connected with video monitoring system.
As further improvement in the technical proposal, described video monitoring system is a CCD visual surveillance system.
As further improvement in the technical proposal, described galvanometer scanning system is made up of X/Y shaft double-servo motor, on the rotating shaft of described X/Y shaft double-servo motor reflecting optics is installed.
As further improvement in the technical proposal, described frock clamp system comprises the collar plate shape accurate displacement turntable that is driven by servomotor, carousel-type card slot type continuous operation chuck is installed on the described collar plate shape accurate displacement turntable, on the described carousel-type card slot type continuous operation chuck combined type photoelectric detection system and hold-down devices is installed.
As further improvement in the technical proposal, described laser instrument emitted laser power is 300W-400W, and pulse frequency is 1-50Hz, and pulse width is 1-20ms, and wavelength is 1064nm.
The beneficial effects of the utility model are: power-type lithium ion safe cap laser welding apparatus of the present utility model is by the cooperation of PC control system, Optical Maser System, several parts of galvanometer scanning system and frock clamp system, realize automated production, overcome the shortcoming that speed of welding is slow in the prior art, welding effect difference qualification rate is low, make speed of welding improve 5-10 doubly, welding safety cap speed can reach 2000/hour; The qualification rate of finished product can reach more than 95%.Adopt power-type lithium ion safe cap laser welding apparatus of the present utility model, product quality and efficient all can be guaranteed, and can realize mass production, can satisfy the demand of people to high-quality power-type lithium ion battery.Video monitoring system is set then can carries out visual control, guarantee welding quality welding process.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is the utility model composition frame chart;
Fig. 2 is that the utility model is formed structural representation;
Fig. 3 is a frock clamp system schematic of the present utility model.
The specific embodiment
With reference to Fig. 1, Fig. 2, a kind of power-type lithium ion battery safe cap laser welding apparatus of the present utility model, bag PC control system 4, described PC control system 4 is connected with Optical Maser System 1 respectively, is used to launch laser;
Galvanometer scanning system 2, the laser that it can send laser instrument conducts and focuses on;
And frock clamp system 3, it is used for adding holds and controls workpiece action.
Power-type lithium ion safe cap laser welding apparatus of the present utility model is by the cooperation of PC control system 4, Optical Maser System 1, galvanometer scanning system 2 and frock clamp system more than 3 parts, realize automated production, overcome the shortcoming that speed of welding is slow in the prior art, welding effect difference qualification rate is low, make speed of welding improve 5-10 doubly, welding safety cap speed can reach 2000/hour; The qualification rate of finished product can reach more than 95%.Adopt power-type lithium ion safe cap laser welding apparatus of the present utility model, product quality and efficient all can be guaranteed, and can realize mass production, can satisfy the demand of people to high-quality power-type lithium ion battery.
Employed Optical Maser System 1 is the Nd:YAG laser instrument in the present embodiment, and described laser instrument emitted laser power is 300W-400W, and pulse frequency is 1-50Hz, and pulse width is 1-20ms, and wavelength is 1064nm.
As preferred implementation, be provided with control card in the described PC control system 4, described PC control system 4 is carried out signal by this control card with Optical Maser System 1, galvanometer scanning system 2 and frock clamp system 3 and is connected, and can finish the independent control to each system.
In addition, described PC control system 4 also is connected with video monitoring system 8, and as preferably, described video monitoring system 8 is a CCD visual surveillance system.8 of video monitoring systems are set can carry out visual control to welding process, guarantees welding quality.Certainly, described video monitoring system 8 also is that video acquisition module by control card is connected on the PC control system 4.
Described galvanometer scanning system is made up of X/Y shaft double-servo motor, on the rotating shaft of described X/Y shaft double-servo motor reflecting optics is installed, and the laser instrument emission laser beam is focused on by lens through reflecting optics reflection back.
Described frock clamp system comprises the collar plate shape accurate displacement turntable 31 that is driven by servomotor 7, carousel-type card slot type continuous operation chuck is installed on the described collar plate shape accurate displacement turntable 31, on the described carousel-type card slot type continuous operation chuck combined type photoelectric detection system 6 and hold-down devices 5 is installed.
The course of work of the present utility model is: 6 actions of combined type photoelectric detection system, detect a working position and place safe cap, output signal is to the PC control card, hold-down devices 5 in the PC control system 4 control frock clamp systems 3 is carried out pressing action explosion-proof aluminium film and lower shoe is compressed, control Optical Maser System 1 emission laser, 2 actions of control galvanometer scanning system, conduction focuses on the light that Optical Maser System 1 sends through galvanometer scanning system, 1-5 point of welding on safe cap, finish once welding, 5 actions of control hold-down devices, the action of control frock clamp servomotor, the rotary work chuck is to next station, and combined type photoelectric detection system 6 moves.When detecting working position when idle, output signal is to PC control system 4, the 4 control frock clamp servomotor actions of PC control system, the rotary work chuck is to next station, 6 actions of combined type photoelectric detection system, so circulation, video detection system 8 can detect the mass defect in the welding process, in time corrects.
Power-type lithium ion battery safe cap laser welding technology of the present utility model and present solder technology comparison have following advantage and characteristics:
1, domestic bonding machine still is the single-point welding substantially at present, once only weld a point, lithium battery anti-explosion safety block for proof strength and big electric current pass through requirement, need on the composition surface of aluminium film and lower shoe, weld 4-5 point, if weld by present traditional welding machine, need welding 4-5 time, both reduced the efficient of welding, can't guarantee the accuracy of welding position.
2, the welding of lithium ion battery safe cap is carried out the research of specialization, comprise laser technical parameters, clamp fixture design etc., at present, domestic welding to safe cap does not also have location difficulty in the feasible welding of the specialized research safe cap process, and welding efficiency is not high.
3, designed the frock clamp system and realized safe cap automation welding, welding safe cap speed can reach 2000/hour; , the welding finished product qualification rate reaches more than 95%.At present, this index reaches advanced international level.
4, adopted the CCD video frequency monitoring system that the product of laser weld is carried out online detection and tracking, occurring welding unstable or occur under the situation of substandard products, realize fast reaction.
The invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite of the utility model spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (7)
1. power-type lithium ion battery safe cap laser welding apparatus is characterized in that: bag PC control system, described PC control system is connected with respectively
Optical Maser System is used to launch laser;
Galvanometer scanning system, the laser that it can send laser instrument conducts and focuses on;
And the frock clamp system, it be used for clamping and control workpiece action.
2. power-type lithium ion battery safe cap laser welding apparatus according to claim 1, it is characterized in that: be provided with control card in the described PC control system, described PC control system is carried out signal by this control card with Optical Maser System, galvanometer scanning system and frock clamp system and is connected.
3. power-type lithium ion battery safe cap laser welding apparatus according to claim 1 and 2 is characterized in that: described PC control system also is connected with video monitoring system.
4. power-type lithium ion battery safe cap laser welding apparatus according to claim 3 is characterized in that: described video monitoring system is a CCD visual surveillance system.
5. power-type lithium ion battery safe cap laser welding apparatus according to claim 1 and 2 is characterized in that: described galvanometer scanning system is made up of X/Y shaft double-servo motor, on the rotating shaft of described X/Y shaft double-servo motor reflecting optics is installed.
6. power-type lithium ion battery safe cap laser welding apparatus according to claim 1 and 2, it is characterized in that: described frock clamp system comprises the collar plate shape accurate displacement turntable that is driven by servomotor, carousel-type card slot type continuous operation chuck is installed on the described collar plate shape accurate displacement turntable, on the described carousel-type card slot type continuous operation chuck combined type photoelectric detection system and hold-down devices is installed.
7. power-type lithium ion battery safe cap laser welding apparatus according to claim 1 is characterized in that: described Optical Maser System emitted laser power is 300W-400W, and pulse frequency is 1-50Hz, and pulse width is 1-20ms, and wavelength is 1064nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920236609 CN201511214U (en) | 2009-09-29 | 2009-09-29 | Laser welding device of power type lithium ion battery safety cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920236609 CN201511214U (en) | 2009-09-29 | 2009-09-29 | Laser welding device of power type lithium ion battery safety cap |
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| Publication Number | Publication Date |
|---|---|
| CN201511214U true CN201511214U (en) | 2010-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920236609 Expired - Fee Related CN201511214U (en) | 2009-09-29 | 2009-09-29 | Laser welding device of power type lithium ion battery safety cap |
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| CN (1) | CN201511214U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056533A (en) * | 2012-12-20 | 2013-04-24 | 华中科技大学 | Oscillatory scanning laser beam-electric arc hybrid welding method and system |
| CN103753019A (en) * | 2014-01-03 | 2014-04-30 | 中达电通股份有限公司 | Control method and control system both used for battery laser welding |
| CN104505486A (en) * | 2014-12-19 | 2015-04-08 | 左文明 | Automatic cylindrical battery cap welding machine |
| CN106475682A (en) * | 2016-11-02 | 2017-03-08 | 深圳锦帛方激光科技有限公司 | A kind of cell sealing laser welding apparatus |
| CN106624360A (en) * | 2016-12-20 | 2017-05-10 | 柳州振业焊接机电设备制造有限公司 | Lithium-ion power battery laser welding method |
| CN107009026A (en) * | 2017-05-17 | 2017-08-04 | 中国第汽车股份有限公司 | A kind of welding technique and device of electrokinetic cell monomer |
| CN107052571A (en) * | 2016-12-27 | 2017-08-18 | 深圳信息职业技术学院 | A kind of laser welding apparatus and method for laser welding |
| CN107717225A (en) * | 2017-10-19 | 2018-02-23 | 广东正业科技股份有限公司 | A kind of battery pole ear welding system |
| US10673051B2 (en) * | 2015-08-14 | 2020-06-02 | Audi Ag | Energy storage arrangement in particular for a motor vehicle, motor vehicle and method for producing an energy storage arrangement |
-
2009
- 2009-09-29 CN CN 200920236609 patent/CN201511214U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056533A (en) * | 2012-12-20 | 2013-04-24 | 华中科技大学 | Oscillatory scanning laser beam-electric arc hybrid welding method and system |
| CN103056533B (en) * | 2012-12-20 | 2015-04-15 | 华中科技大学 | Oscillatory scanning laser beam-electric arc hybrid welding method and system |
| CN103753019B (en) * | 2014-01-03 | 2016-09-07 | 中达电通股份有限公司 | Control method and system for battery laser welding |
| CN103753019A (en) * | 2014-01-03 | 2014-04-30 | 中达电通股份有限公司 | Control method and control system both used for battery laser welding |
| CN104505486B (en) * | 2014-12-19 | 2017-12-12 | 左文明 | A kind of cylindrical battery automatic welding block machine |
| CN104505486A (en) * | 2014-12-19 | 2015-04-08 | 左文明 | Automatic cylindrical battery cap welding machine |
| US10673051B2 (en) * | 2015-08-14 | 2020-06-02 | Audi Ag | Energy storage arrangement in particular for a motor vehicle, motor vehicle and method for producing an energy storage arrangement |
| CN106475682A (en) * | 2016-11-02 | 2017-03-08 | 深圳锦帛方激光科技有限公司 | A kind of cell sealing laser welding apparatus |
| CN106475682B (en) * | 2016-11-02 | 2019-01-22 | 深圳锦帛方激光科技有限公司 | A kind of cell sealing laser welding apparatus |
| CN106624360A (en) * | 2016-12-20 | 2017-05-10 | 柳州振业焊接机电设备制造有限公司 | Lithium-ion power battery laser welding method |
| CN107052571A (en) * | 2016-12-27 | 2017-08-18 | 深圳信息职业技术学院 | A kind of laser welding apparatus and method for laser welding |
| CN107052571B (en) * | 2016-12-27 | 2019-08-30 | 深圳信息职业技术学院 | A kind of laser welding apparatus and method for laser welding |
| CN107009026A (en) * | 2017-05-17 | 2017-08-04 | 中国第汽车股份有限公司 | A kind of welding technique and device of electrokinetic cell monomer |
| CN107009026B (en) * | 2017-05-17 | 2019-03-12 | 中国第一汽车股份有限公司 | A kind of welding technique and device of power battery monomer |
| CN107717225A (en) * | 2017-10-19 | 2018-02-23 | 广东正业科技股份有限公司 | A kind of battery pole ear welding system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20140929 |
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| EXPY | Termination of patent right or utility model |