CN102672408B - Welding fixture - Google Patents
Welding fixture Download PDFInfo
- Publication number
- CN102672408B CN102672408B CN201110058433.9A CN201110058433A CN102672408B CN 102672408 B CN102672408 B CN 102672408B CN 201110058433 A CN201110058433 A CN 201110058433A CN 102672408 B CN102672408 B CN 102672408B
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- CN
- China
- Prior art keywords
- drive part
- battery
- guide
- fixedly connected
- telescopic drive
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- 238000003466 welding Methods 0.000 title abstract description 17
- 241000271510 Agkistrodon contortrix Species 0.000 claims abstract description 32
- 230000008878 coupling Effects 0.000 claims description 26
- 238000010168 coupling process Methods 0.000 claims description 26
- 238000005859 coupling reaction Methods 0.000 claims description 26
- 230000004927 fusion Effects 0.000 abstract description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 8
- 229910001416 lithium ion Inorganic materials 0.000 description 8
- 230000035515 penetration Effects 0.000 description 6
- 229910000679 solder Inorganic materials 0.000 description 6
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a welding fixture. The welding fixture comprises a positioning mechanism, a battery pressing mechanism and a driving mechanism. The positioning mechanism comprises a positioning seat, two positioning shafts fixed on the positioning seat and four positioning bearings respectively sleeved on both ends of two positioning shafts. The battery pressing mechanism comprises a fixed base, a first flexible driving part fixed on the fixed base, a guide shaft fixedly connected with a driving shaft of the first flexible driving part and two guide bearings respectively sleeved on both ends of the guide shaft. The driving mechanism comprises a first supporting seat, a rotary driving part fixed on the first supporting seat, a first compacting copper head fixedly connected with the driving shaft of the rotary driving part, a second supporting seat, a second flexible driving part fixed on the second supporting seat and a second compacting copper head connected with the driving shaft of the second flexible driving part. The welding fixture provided by the invention adopts four positioning bearing and two guide bearings to position the battery to guarantee that axis of the battery can not shift when the battery rotates, thereby improving the once welding yield and depth of fusion of the battery and the uniformity of the depth of fusion around the battery.
Description
[technical field]
The present invention relates to a kind of weld jig, particularly relate to a kind of weld jig being applicable to the weldering of columniform battery both end sides.
[background technology]
Lithium ion battery is a kind of Large Copacity, high-power battery, is mainly used on portable power source, electric motor car, automobile.Lithium ion battery is generally the battery roll core be wound into by battery upper and lower cover assembly, housing, electrolyte and positive and negative plate and diaphragm paper.When manufacturing lithium ion battery, need first to adopt weld jig to be fixed by columniform lithium ion battery, then upper and lower covers, lower cover and case weld are got up.
A kind of weld jig, it is applicable to columniform lithium ion battery welding location, and this weld jig comprises two vee-blocks matched, piezoelectricity cylinder and rotating drive part, and piezoelectricity cylinder and rotating drive part are respectively equipped with one and compress copperhead.During welding, the vee-block closed is put well battery location, then piezoelectric battery cylinder is pressed the lower surface of battery, and jam-packed upper cover end is to the driving round end of rotating drive part.Then, unclamp vee-block and carry out rotating welding, upper cover welding is complete, and move to lower cover by piezoelectric battery cylinder entirety and weld, after completing, vee-block closes, and piezoelectric battery cylinder is separated, and takes out battery.
But above-mentioned weld jig adopts vee-block location, very unstable, is difficult to adjustment, the depth of parallelism of two vee-blocks and the height of position are difficult to keep, and cause the two ends copperhead of lithium ion battery to be difficult in line.In addition, the compression copperhead of welding battery upper and lower cover is difficult to one heart, and copperhead end face is difficult to ensure vertical with copperhead axle, in the process causing lithium ion battery to rotate in welding, pad ovalisation track runs, and round beats greatly (maximum 2-3mm), namely, lithium ion battery offsets in axle center when rotating, and cause a leak rate high, surrounding fusion penetration uniformity is bad, some areas fusion penetration is inadequate, and after battery stock a period of time, leakage rate is high.Therefore, when adopting weld jig to weld, a solder yield of battery is lower.
[summary of the invention]
In view of above-mentioned condition, be necessary to provide a kind of weld jig improving a solder yield of battery.
A kind of weld jig, the battery of setting circle cylindricality during for welding, this battery upper cover, lower cover and the columnar housing be connected between this upper cover and lower cover, this weld jig comprises detent mechanism, piezoelectric battery mechanism and driving mechanism.This detent mechanism comprises positioning seat, be fixed on two locating shafts on this positioning seat and be sheathed on four location bearings at these two locating shaft two ends respectively.This piezoelectric battery mechanism comprises firm banking, the first telescopic drive part be fixed on this firm banking, the axis of guide be fixedly connected with the driving shaft of this first telescopic drive part and be sheathed on two guide bearings at these axis of guide two ends respectively.This driving mechanism comprises the first supporting seat, the rotating drive part be fixed on this first supporting seat, be fixedly connected with the driving shaft of this rotating drive part first compress copperhead, the second supporting seat, be fixed on the second telescopic drive part on this second supporting seat and be fixedly connected with the driving shaft of this second telescopic drive part second compress copperhead.This first compression copperhead and second compresses copperhead and offsets with this upper cover and lower cover respectively.These four location bearings and two guide bearings and this housing offset, and this rotating drive part drives this first to compress copperhead and rotate, thus drives this battery to rotate relative to this positioning base.
Above-mentioned weld jig adopts four location bearings and two guide bearing locating batteries, ensure that battery does not offset in axle center when rotating, the circular track of battery pad in the process of welding rotation is run, thus the uniformity of a solder yield of raising battery, fusion penetration and battery ambient fusion penetration.
Further, one end of this positioning seat is provided with two boss portion, and each boss portion offers the axis hole worn for this locating shaft.
Further, this piezoelectric battery mechanism also comprises the guide between driving shaft and this axis of guide being fixedly connected on this first telescopic drive part, this guide along this first telescopic drive part sidewall slidably.
Further, this piezoelectric battery mechanism also comprises the first yielding coupling be fixedly connected with between this guide and this axis of guide.
Further, this first telescopic drive part is slide block cylinder.
Further, this driving mechanism comprises the driving shaft that is fixedly connected with this rotating drive part and this first compresses the second yielding coupling between copperhead.
Further, this driving mechanism also comprises the driving shaft that is fixedly connected with this second telescopic drive part and this second compresses the 3rd yielding coupling between copperhead.
Further, this second telescopic drive part is telescopic cylinder.
First compresses copperhead is fixedly connected with the driving shaft of rotating drive part by the second yielding coupling, second compresses copperhead is fixedly connected with by the driving shaft of the 3rd yielding coupling with the second telescopic drive part, can elastic deformation be there is in the second yielding coupling and the 3rd yielding coupling when battery rotates, small nonconcentricity when rotating with balancing battery, thus the solder yield improving battery further.
[accompanying drawing explanation]
Fig. 1 is the stereogram of the weld jig of embodiment one;
Fig. 2 is the stereogram at another visual angle of weld jig shown in Fig. 1;
Fig. 3 is the sectional view of the positioning seat of weld jig shown in Fig. 1.
[detailed description of the invention]
Main accompanying drawings the specific embodiment of the present invention below.
Refer to Fig. 1 and Fig. 2, the weld jig 100 of embodiment one is for the battery 200 of the setting circle cylindricality when welding.The columnar housing (scheming not mark) that battery 200 comprises upper cover (figure does not mark), lower cover (figure does not mark) and connects between upper cover and lower cover.Weld jig 100 comprises detent mechanism 20, piezoelectric battery mechanism 30 and driving mechanism 40.Detent mechanism 20 matches with piezoelectric battery mechanism 30, with the housing of locating batteries 200.Driving mechanism 40 can drive battery 200 to rotate.
Please refer to Fig. 3, detent mechanism 20 comprises positioning seat 21, locating shaft 23 and location bearing 25.Specifically in the present embodiment, one end of positioning seat 21 is formed with two boss portion 211,213, and wherein the height of boss portion 213 is higher than the height of boss portion 211, makes the cavity between two boss portion 211,213 can accommodate battery 200.Two boss portion 211,213 offer axis hole 2112 and axis hole 2132 respectively.Locating shaft 23 is two, wears two axis holes 2112,2132 respectively.Each locating shaft 23 is roughly cylinder.Location bearing 25 is four, is sheathed on the two ends of two locating shafts 23 respectively.During locating batteries 200, four location bearings 25 offset with the columnar housing of battery 200.
Piezoelectric battery mechanism 30 comprises firm banking 31, first telescopic drive part 33, guide 35, first yielding coupling 37, the axis of guide 38 and guide bearing 39.First telescopic drive part 33 is fixed on firm banking 31.First telescopic drive part 33 can be telescopic cylinder, slide block cylinder, the threaded rod etc. that is fixedly connected with the driving shaft of motor.Guide 35 is roughly L-type, and its one end is fixedly connected with the driving shaft of the first telescopic drive part 33, the other end along the first telescopic drive part 33 sidewall slidably.First yielding coupling 37 is fixedly connected between guide 35 and the axis of guide 38.Specifically in the present embodiment, guide bearing 39 is two, is individually fixed in the two ends of the axis of guide 38; First telescopic drive part 33 is slide block cylinder.
Driving mechanism 40 comprises rotating drive part 41, first supporting seat 43, second supporting seat 45 and the second telescopic drive part 47.Rotating drive part 41 is fixed on the first supporting seat 43.The free end that the driving shaft of rotating drive part 41 is provided with the second yielding coupling 412, second yielding coupling 412 be provided with offset with the upper cover of battery 200 or lower cover first compress copperhead 414.Second telescopic drive part 47 is fixed on the second supporting seat 45.One end that the driving shaft of the second telescopic drive part 47 is provided with the 3rd yielding coupling the 472, three yielding coupling 472 be provided with offset with the upper cover of battery 200 or lower cover second compress copperhead 474.Second telescopic drive part 47 can be telescopic cylinder, slide block cylinder, the threaded rod etc. that is fixedly connected with the driving shaft of motor.Specifically in the present embodiment, the second telescopic drive part 47 can be telescopic cylinder.
During assembly welding fixture 100, two locating shafts 23 are worn respectively two axis holes 2112,2132 of positioning seat 21.Four location bearings 25 are sheathed on respectively the two ends of two locating shafts 23.Then, the first telescopic drive part 33 is fixed on firm banking 31.One end of guide 35 is fixedly connected with the driving shaft of the first telescopic drive part 33.First yielding coupling 37 is fixedly connected between guide 35 and the axis of guide 38.Two guide bearings 39 are sheathed on the two ends of the axis of guide 38 respectively.Rotating drive part 41 is fixed on the first supporting seat 43.The driving shaft and first that second yielding coupling 412 is fixedly connected on rotating drive part 41 compresses between copperhead 414.Second telescopic drive part 47 is fixed on the second supporting seat 45.The driving shaft and second that 3rd yielding coupling 472 is fixedly connected on the second telescopic drive part 47 compresses between copperhead 474.
During welding, the driving shaft of the first telescopic drive part 33 extends, and the housing of battery 200 is held between four location bearings 25 and two guide bearings 39.The driving shaft of the second telescopic drive part 47 extends, and makes the upper cover of battery 200 and lower cover compress copperhead 414 and second respectively with first and compresses copperhead 474 and offset.Rotating drive part 41 can drive the first compression copperhead 414 to rotate, thus drives battery 200 to rotate relative to positioning seat 21.
Above-mentioned weld jig 100 adopts four location bearings 25 and two guide bearing 39 locating batteries 200, ensure that battery 200 does not offset in axle center when rotating, the circular track of battery 200 pad in the process of welding rotation is run, thus the uniformity of a solder yield of raising battery 200, fusion penetration and battery ambient fusion penetration.
And, first compresses copperhead 414 is fixedly connected with the driving shaft of rotating drive part 41 by the second yielding coupling 412, second compresses copperhead 474 is fixedly connected with by the driving shaft of the 3rd yielding coupling 472 with the second telescopic drive part 47, can elastic deformation be there is in the second yielding coupling 412 and the 3rd yielding coupling 472 when battery 200 rotates, small nonconcentricity when rotating with balancing battery, thus the solder yield improving battery 200 further.
Be appreciated that guide 35 and the first yielding coupling 37 also can omit, now, the driving shaft of the first telescopic drive part 33 is directly fixedly connected with the axis of guide 38, or the driving shaft of the first telescopic drive part 33 is fixedly connected with the axis of guide 38 by guide 35.Second yielding coupling 412 and the 3rd yielding coupling 472 also can omit, and now, the driving shaft of rotating drive part 41 directly compresses copperhead 414 with first and is fixedly connected with, and the driving shaft of the second telescopic drive part 47 directly compresses copperhead 474 with second and is fixedly connected with.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (6)
1. cylindrical battery weld jig, is characterized in that, this weld jig comprises:
Detent mechanism, comprise positioning seat, be fixed on two locating shafts on this positioning seat and be sheathed on four location bearings at these two locating shaft two ends respectively, one end of described positioning seat is provided with two boss portion, the height of one of them boss portion is higher than the height of another boss portion, the cavity between described two boss portion is made to accommodate battery, each boss portion offers axis hole, and each locating shaft wears corresponding axis hole;
Piezoelectric battery mechanism, comprise firm banking, the axis of guide that the first telescopic drive part be fixed on this firm banking is fixedly connected with the driving shaft of this first telescopic drive part, two guide bearings being sheathed on these axis of guide two ends respectively and the guide be fixedly connected between the driving shaft of described first telescopic drive part and the described axis of guide, described guide along described first telescopic drive part sidewall slidably; And
Driving mechanism, comprise the first supporting seat, the rotating drive part be fixed on this first supporting seat, be fixedly connected with the driving shaft of this rotating drive part first compress copperhead, the second supporting seat, be fixed on the second telescopic drive part on this second supporting seat and be fixedly connected with the driving shaft of this second telescopic drive part second compress copperhead, this rotating drive part drives this first to compress copperhead and rotate.
2. weld jig as claimed in claim 1, it is characterized in that, this piezoelectric battery mechanism also comprises the first yielding coupling be fixedly connected between this guide and this axis of guide.
3. weld jig as claimed in claim 1 or 2, it is characterized in that, this first telescopic drive part is slide block cylinder.
4. weld jig as claimed in claim 2, is characterized in that, this driving mechanism comprises the driving shaft that is fixedly connected on this rotating drive part and this first compresses the second yielding coupling between copperhead.
5. weld jig as claimed in claim 4, is characterized in that, this driving mechanism also comprises the driving shaft that is fixedly connected on this second telescopic drive part and this second compresses the 3rd yielding coupling between copperhead.
6. weld jig as claimed in claim 5, it is characterized in that, this second telescopic drive part is telescopic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110058433.9A CN102672408B (en) | 2011-03-11 | 2011-03-11 | Welding fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110058433.9A CN102672408B (en) | 2011-03-11 | 2011-03-11 | Welding fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102672408A CN102672408A (en) | 2012-09-19 |
| CN102672408B true CN102672408B (en) | 2015-07-22 |
Family
ID=46805316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110058433.9A Active CN102672408B (en) | 2011-03-11 | 2011-03-11 | Welding fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102672408B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394853A (en) * | 2013-07-29 | 2013-11-20 | 深圳市联赢激光股份有限公司 | Fixture for welding of battery end covers |
| CN103817447B (en) * | 2014-03-06 | 2015-08-26 | 上海电气钠硫储能技术有限公司 | A kind of sodium-sulphur battery laser weld Double-station clamp |
| CN104406465B (en) * | 2014-11-18 | 2016-04-13 | 南昌大学 | A kind of gripping body for the fast remover-and-replacer of hexagon |
| CN108637478B (en) * | 2018-05-15 | 2019-11-26 | 合肥国轩高科动力能源有限公司 | Rotary welding positioning device for lithium ion cylindrical battery cover plate |
| CN110560969A (en) * | 2019-08-08 | 2019-12-13 | 中山慧能科技有限公司 | High-precision automatic battery welding equipment |
| CN115519295A (en) * | 2022-05-20 | 2022-12-27 | 苏州宇量电池有限公司 | Rotary welding positioning device for end face of cylindrical battery |
| CN116174851B (en) * | 2023-04-24 | 2024-01-30 | 成都航利航空科技有限责任公司 | TIG spot welding fixture |
| CN116493831A (en) * | 2023-06-28 | 2023-07-28 | 江苏时代新能源科技有限公司 | Pushing component, fixing structure, welding device and battery processing equipment |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0857690A (en) * | 1994-08-24 | 1996-03-05 | Line Works:Kk | Welding jig device for core diaphragm and the like |
| JP2004105981A (en) * | 2002-09-13 | 2004-04-08 | Toshiba Corp | Welding equipment for can type battery |
| CN2806036Y (en) * | 2005-05-25 | 2006-08-16 | 深圳市比克电池有限公司 | Laser welding assistor for cylindrical battery body |
| CN100506468C (en) * | 2005-12-30 | 2009-07-01 | 深圳市比克电池有限公司 | Cylinder battery casing laser welding fixture |
| CN2933686Y (en) * | 2006-03-24 | 2007-08-15 | 深圳市比克电池有限公司 | Battery laser welding clamp |
| CN201128059Y (en) * | 2007-12-06 | 2008-10-08 | 林宏逸 | Circular tube positioning structure of automatic welding machine for welding circular tube and scaffolding |
| CN201264150Y (en) * | 2008-09-19 | 2009-07-01 | 宝鸡石油机械有限责任公司 | Novel high-pressure pipe joints welding device |
| CN201685070U (en) * | 2010-04-29 | 2010-12-29 | 新疆威奥科技股份有限公司 | Pre-tightening lifting type roller frame |
-
2011
- 2011-03-11 CN CN201110058433.9A patent/CN102672408B/en active Active
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| Publication number | Publication date |
|---|---|
| CN102672408A (en) | 2012-09-19 |
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Effective date of registration: 20160822 Address after: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong Province, No. 6 building 518000 Patentee after: SHENZHEN BAK POWER BATTERY Co.,Ltd. Address before: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong province 518119 Patentee before: SHENZHEN BAK BATTERY Co.,Ltd. |
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Effective date of registration: 20191022 Granted publication date: 20150722 |
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Date of cancellation: 20221022 Granted publication date: 20150722 |
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Effective date of registration: 20221022 Granted publication date: 20150722 |