CN102328175B - Laser welding fixture for square battery module - Google Patents

Laser welding fixture for square battery module Download PDF

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Publication number
CN102328175B
CN102328175B CN201110214043.6A CN201110214043A CN102328175B CN 102328175 B CN102328175 B CN 102328175B CN 201110214043 A CN201110214043 A CN 201110214043A CN 102328175 B CN102328175 B CN 102328175B
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China
Prior art keywords
clamping frame
type gantry
supporting structure
drive unit
down mechanism
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CN201110214043.6A
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Chinese (zh)
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CN102328175A (en
Inventor
宫璐
邵意志
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Hefei Gotion High Tech Power Energy Co Ltd
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Hefei Guoxuan High Tech Power Energy Co Ltd
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Abstract

The invention relates to a laser welding fixture for a square battery module. The laser welding fixture comprises a worktable, a pressing mechanism and a supporting mechanism, wherein, the pressing mechanism is fixed on an 'H'-shaped gantry support structure and comprises a pressing frame and a cylinder drive unit; the 'H'-shaped gantry support structure is fixed at two sides of the worktable and comprises an 'H'-shaped gantry support frame and a laser head drive unit; and the worktable comprises an X-Y axis drive unit and a supporting platform. By adopting the structure, the laser welding fixture has the beneficial effects that a connection piece can be tightly contacted with a battery cover plate during the welding process, thus achieving high welding success rate; and in addition, by means of movable arrangement of the worktable, the whole battery module can be completely welded only by one-time setup, thus being simple, convenient and fast in operation.

Description

A kind of laser welding fixture for square battery module
Technical field
The present invention relates to a kind of fixture, particularly relate to a kind of laser welding fixture for square battery module.
Background technology
Assemble in lithium ion battery process in groups at current non-riveting method, need to use crosspointer spot welding to be welded on the stainless steel platen of battery cover board by copper nickel compound board.Although existing crosspointer spot-welding equipment input cost is low, simple to operate, welding quality is general, fusion penetration is little, speed is slow, and caloric value is large.In addition, along with the raising of electrokinetic cell high rate performance, the discharge current of requirement is large, and traditional copper nickel compound board cannot meet the needs that load big current passes through, and must use copper plate instead, and the welding effect of crosspointer spot-welding equipment to copper plate is poor.The quality of laser weld is good, and speed is fast, and fusion penetration is large, and automaticity is high, but adopt at present when laser weld battery modules and copper connecting plate and can only adopt manual operations, efficiency is low, lot stability is poor.Be badly in need of exploitation specially for the fixture for laser welding of battery modules.
Summary of the invention
The object of the present invention is to provide a kind of fixture welded for lithium ion battery module and brace.It comprises workbench, hold-down mechanism and " H " type gantry supporting structure.Described hold-down mechanism is positioned on " H " type gantry supporting structure, and it comprises for brace being pressed on clamping frame on the pressing plate of battery cover board and cylinder driver.Described " H " type gantry supporting structure is fixed on workbench both sides, it comprises " H " type gantry bracing frame and and slide rail.Described workbench comprises X, Y-axis drive unit and battery modules fixed platform.
Technical solution problem of the present invention provides following scheme:
A kind of laser welding fixture for square battery module, comprise workbench, hold-down mechanism and " H " type gantry supporting structure, described hold-down mechanism is positioned on " H " type gantry supporting structure, it comprises a clamping frame and cylinder driver and cylinder driver fixed platform, described hold-down mechanism is positioned on " H " type gantry supporting structure, and it has the clamping frame with slit with brace close contact.
Described hold-down mechanism also comprises cylinder driver, and described cylinder driver can drive clamping frame to be pressed on battery modules top.
Described " H " type gantry supporting structure is provided with slide rail and limited block.
Described " H " type gantry bracing frame 3 is fixed on the both sides of workbench, it comprises " H " type gantry bracing frame and laser head drive unit.
Described " H " type gantry supporting structure comprises two sections of gantry bracing frames welded together by support member
Compared with prior art, fixture of the present invention have employed hold-down mechanism, can ensure brace and battery cover board close contact well, be welded into power high during welding.In addition, arranged by the activity of workbench, battery modules only need once set, and can complete the welding of whole module, simple and efficient to handle.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a preferred embodiment of the present invention.
Fig. 2 is the enlarged drawing of clamping frame in Fig. 1.
Fig. 3 is the top view of Fig. 1.
Fig. 4 is the schematic diagram of Fig. 1 when loading battery.
Fig. 5 is the schematic diagram of the embodiment of the present invention two.
Fig. 6 a is the enlarged drawing of clamping frame in Fig. 5.
Fig. 6 b is the enlarged drawing of Fig. 6 a.
Fig. 7 is the top view of Fig. 5 when loading battery.
Detailed description of the invention
Embodiment one
Referring to Fig. 1, is a preferred embodiment of the present invention, is applicable to optical fiber output type laser instrument.The fixture of this battery pack and brace welding mainly comprises workbench 1, hold-down mechanism 2 and " H " type gantry supporting structure 3.
Described hold-down mechanism is fixed on " H " type gantry supporting structure 3, and it comprises a clamping frame 4 and cylinder driver 5.Clamping frame 4 is for there being the steel design of slit 6 (referring to Fig. 2).The two ends of clamping frame 4 are connected with the piston rod 17 of cylinder driver 5 respectively.There is the block rubber 7 (referring to Fig. 2) containing slit 6 clamping frame 4 bottom surface.
Described " H " type gantry bracing frame 3 is fixed on the both sides of workbench 1, it comprises " H " type gantry bracing frame 8 and laser head drive unit 9, and drive unit 9 is made up of drive motors 10 and the second screw rod 11.Drive motors 10 makes the second screw rod 11 rotate, and moves (referring to Fig. 3,4) for driving laser head 13.
Described workbench comprises X, Y-axis drive unit 18 and support platform 14.By drive motors 19, first screw rod 20 is rotated for driving support platform 14 to move.
Refer to Fig. 4, when carrying out the laser weld of lithium ion battery module 15 and brace 16, first, startup X, Y-axis drive unit 18 drive support platform 14, make battery modules 15 and brace 16 move to relevant position; Next, start cylinder 5, promote piston rod 17 and drive clamping frame 4 that brace 16 is pressed on battery 15 top; Start laser, make laser pass slit 6 and penetrate at brace 16, meanwhile, start laser head drive unit 9 driving laser head 13 and move, after making laser move to subscribe position along the direction of slit 6, stop laser.Cylinder 5 is stopped to work, piston rod 17 is made to drive clamping frame 4 to depart from brace 16, restart X, Y-axis drive unit 18 drives support platform 14, battery modules 15 and brace 16 is made to move to relevant position, start to weld next time, this time during laser weld, laser head drive unit 9 driving laser head 13 moves along with rightabout last time, drives laser head 13 to get back to initial position.
Embodiment two
Refer to Fig. 5-7, the present embodiment is applicable to fixed light path output type laser instrument.The fixture of this battery pack and brace welding mainly comprises workbench 1, hold-down mechanism 2 and " H " type gantry supporting structure 3.
Described hold-down mechanism is fixed on " H " type gantry supporting structure 3, and it comprises a clamping frame 30 (referring to Fig. 6) and cylinder driver 5.Clamping frame 30 is for there being the steel design of slit 6.The two ends of clamping frame 30 are connected with the piston rod 17 of cylinder driver 5 respectively.There is the block rubber 7 containing slit 6 clamping frame 30 bottom surface.
Described " H " type gantry bracing frame is fixed on the both sides of workbench 1, it comprises " H " type gantry bracing frame 21 and hold-down mechanism slide rail 22." H " type gantry bracing frame 21 is fixed with limited block 23, for limiting the sliding scale of hold-down mechanism slide rail 22.Hold-down mechanism slide rail 22 comprises " L " air cylinder support 24 and slide rail 25.
Described workbench comprises X, Y-axis drive unit 18 and support platform 14.By drive motors 19, first screw rod 20 is rotated for driving support platform 14 to move.
When carrying out the laser weld of lithium ion battery module 15 and brace 16, first, startup X, Y-axis drive unit 18 drive support platform 14, make battery modules 15 and brace 16 move to relevant position; Next, start cylinder 5, promote piston rod 17 and drive clamping frame 30 that brace 16 is pressed on battery 15 top; Start laser, making laser pass slit 6 penetrates at brace 16, meanwhile, to start workbench X-axis drive unit 18 drive support platform 14, battery modules 15, brace 16 to move, and simultaneously by the effect of frictional force, battery modules 15, brace 16 drive hold-down mechanism 2, " L " air cylinder support 24 to move along slide rail 25, after making laser along slit 6 to reservation position, stop laser, hold-down mechanism 2, " L " air cylinder support 24 also stop motion.Cylinder 5 is stopped to work, piston rod 17 is made to drive clamping frame 4 to depart from brace 16, restart X, Y-axis drive unit 18 drives support platform 14, battery modules 15 and brace 16 is made to move to relevant position, start to weld next time, this time during laser weld, workbench X-axis drive unit 18 drives support platform 14, battery modules 15, brace 16 and hold-down mechanism 2, " L " air cylinder support 24 is along slide rail 25 and move with rightabout last time, drives hold-down mechanism 2 to get back to initial position.
Because fixture of the present invention have employed compressing structure, ensure that the close contact of brace and battery modules, thus ensure that the effect of laser weld.In conjunction with the Automated condtrol program of laser instrument, the welding of each battery modules only needs to control initial position, once sets, can complete the welding of whole group of module, time-saving and efficiency.

Claims (1)

1. a laser welding fixture for square battery module, comprise workbench, hold-down mechanism and " H " type gantry supporting structure, described hold-down mechanism is positioned on " H " type gantry supporting structure, it comprises a clamping frame and cylinder driver and cylinder driver fixed platform, it is characterized in that: " H " type gantry supporting structure is by a left side, right two bracing frames and be connected to a left side, crossbeam between right two bracing frames is formed, described hold-down mechanism is positioned on " H " type gantry supporting structure, it has the clamping frame with brace close contact, described clamping frame upper, lower two surfaces are provided with slit, there is the block rubber containing slit described clamping frame bottom surface, described hold-down mechanism also comprises cylinder driver, the two ends of clamping frame are connected with the piston rod of cylinder driver respectively, described piston rod controls clamping frame in the vertical direction, lower movement, and described cylinder driver drives clamping frame to be pressed on battery modules top, described " H " type gantry supporting structure is provided with slide rail and limited block, described " H " type gantry supporting structure is fixed on the both sides of workbench, it comprises " H " type gantry bracing frame and laser head drive unit, described workbench comprises X, Y-axis Working table driving device and support platform, by table drive motor, the first screw rod is rotated for driving support platform to move, laser head drive unit is made up of laser head drive motors and the second screw rod, and laser head can be movable on clamping frame along slit.
CN201110214043.6A 2011-07-28 2011-07-28 Laser welding fixture for square battery module Active CN102328175B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201110214043.6A CN102328175B (en) 2011-07-28 2011-07-28 Laser welding fixture for square battery module

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CN102328175B true CN102328175B (en) 2015-02-11

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103722293B (en) * 2012-10-12 2015-08-05 东莞成电精工自动化技术有限公司 A kind of jig of laser accurate welding
CN106181033A (en) * 2016-08-24 2016-12-07 江苏中科大港激光科技有限公司 V-type silk laser welding plain net compaction welding set
CN106392404B (en) * 2016-11-24 2018-06-22 东软集团股份有限公司 Battery modules welding fixture and battery modules welder
CN106984909B (en) * 2017-04-14 2018-09-18 重庆创元新能源科技有限责任公司 A kind of press device of nanosecond laser welding
CN108057956A (en) * 2017-12-31 2018-05-22 董艺 The welder of battery modules
CN108470936B (en) * 2018-06-21 2018-12-25 江苏海涛新能源科技有限公司 A kind of battery modules assembly welding machine

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US5674420A (en) * 1995-06-12 1997-10-07 Worthington Industries Incorporated Clamping device for welding machine
CN2915349Y (en) * 2006-04-29 2007-06-27 中国国际海运集装箱(集团)股份有限公司 Centering mechanism for straight welding line automatic welding and its automatic welding device
CN200951486Y (en) * 2006-09-07 2007-09-26 大连宝通工业控制有限公司 Floating type laser cutting device
CN201030473Y (en) * 2007-06-15 2008-03-05 天津力神电池股份有限公司 Square lithium ion battery laser welding jig
CN101376195A (en) * 2007-08-29 2009-03-04 中国科学院沈阳自动化研究所 Compressing apparatus for laser beam welding
CN101890576A (en) * 2010-08-19 2010-11-24 上海市激光技术研究所 Stainless steel or nickel sheet laser tailor-welding alignment clamping device and method

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Publication number Priority date Publication date Assignee Title
US5674420A (en) * 1995-06-12 1997-10-07 Worthington Industries Incorporated Clamping device for welding machine
CN2915349Y (en) * 2006-04-29 2007-06-27 中国国际海运集装箱(集团)股份有限公司 Centering mechanism for straight welding line automatic welding and its automatic welding device
CN200951486Y (en) * 2006-09-07 2007-09-26 大连宝通工业控制有限公司 Floating type laser cutting device
CN201030473Y (en) * 2007-06-15 2008-03-05 天津力神电池股份有限公司 Square lithium ion battery laser welding jig
CN101376195A (en) * 2007-08-29 2009-03-04 中国科学院沈阳自动化研究所 Compressing apparatus for laser beam welding
CN101890576A (en) * 2010-08-19 2010-11-24 上海市激光技术研究所 Stainless steel or nickel sheet laser tailor-welding alignment clamping device and method

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Address after: 230000 Yaohai Industrial Park, Anhui, Hefei No. D weft Road, No. 7

Applicant after: Hefei Guoxuan High-Tech Power Energy Co., Ltd.

Address before: 230000 Yaohai Industrial Park, Anhui, Hefei No. D weft Road, No. 7

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Free format text: CORRECT: APPLICANT; FROM: HEFEI GUOXUAN HIGH-TECH POWER ENERGY CO., LTD. TO: HEFEI GUOXUAN HIGH-TECH POWER ENERGY CO., LTD.

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Address after: 230000 Yaohai Industrial Zone, Hefei New District, Anhui, No. D weft Road, No. 7

Patentee after: Hefei Guoxuan High-Tech Power Energy Co., Ltd.

Address before: 230000 Yaohai Industrial Park, Anhui, Hefei No. D weft Road, No. 7

Patentee before: Hefei Guoxuan High-Tech Power Energy Co., Ltd.