CN1193415A - Method of producing cylindrical cell and apparatus therefor - Google Patents
Method of producing cylindrical cell and apparatus therefor Download PDFInfo
- Publication number
- CN1193415A CN1193415A CN96196366A CN96196366A CN1193415A CN 1193415 A CN1193415 A CN 1193415A CN 96196366 A CN96196366 A CN 96196366A CN 96196366 A CN96196366 A CN 96196366A CN 1193415 A CN1193415 A CN 1193415A
- Authority
- CN
- China
- Prior art keywords
- battery case
- openend
- endless groove
- groove
- fixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
- H01M50/107—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
An apparatus for producing a cylindrical cell, comprising a bottom-holding mechanism (50) for holding the bottom end (12b) of a cell can (12), an opening-holding mechanism (52) for holding the opening end (12c) of the cell can (12), a pressing mechanism (54) for causing the bottom-holding mechanism (50) and the opening-holding mechanism (52) to evenly press both ends (12b, 12c) of the cell can (12), in the axial direction, a rotary mechanism (56) for rotating the cell can (12), and a pushing roller mechanism (58) for pushing a grooving roller (57) onto the cell can (12) to form an annular groove (12a). This makes it possible to reliably form an annular groove (12a) having a uniform thickness and maintaining excellent dimensional stability.
Description
Technical field
The present invention relates to a kind of method and apparatus of processing cylindrical battery, be used near the endless groove that the openend of the cylindrical battery shell of being with the end, is shaped.
Technical background
Usually, the battery case of cylindrical battery is the band cylindrical shape at the end, and an inwardly prominent endless groove is arranged near its openend.When curling openend, this endless groove is used to provide a mould to insert the space or is used for fixing sealing plate, and sealing plate is welded on the afflux lead that is installed on the battery case.
Before this, many methods of processing this endless groove on battery case have been proposed.For example, provided a kind of method of processing battery Japanese Patent Application Publication specification 58-112259 number.According to the method, as shown in Figure 9, the bottom of battery case 4 is inserted in the anchor clamps 2, and after anchor clamps 2 were pressed to retaining element 6, retaining element rotated along the direction shown in the arrow, thereby rotates battery case 4.Roller 8 is pressed onto the outer circumferential surface of battery case 4, is used near endless groove 4a of the processing openend of battery case 4.
When roller 8 was pressed in the outer circumferential surface of battery case 4, whether the pressure of pipe clamp 2 did not act on the battery case 4, and this traditional method all has problem.When roller 8 was pressed in the outer circumferential surface of battery case 4, if the pressure of anchor clamps 2 does not act on the battery case 4, endless groove 4a was just by roller 8 local extensions, because there is not material hitherward to flow.So battery case 4 reduces at the thickness at endless groove 4a place, so intensity reduces.
When roller 8 is pressed in the outer circumferential surface of battery case 4,,, there is material to flow to the zone of roller 8 extruding from the bottom of battery case 4 although there is not material to flow into from the openend of battery case 4 if the pressure of anchor clamps 2 acts on the battery case 4.Therefore, the shape of the endless groove 4a of formed thereby near openend zone and become irregular between the bottom of battery case 4, produces regional area 4b, a thinner thickness herein at it.When battery charge and discharge and when battery case 4 was under pressure, regional area 4b can not provide required mechanical strength.Because the shape of endless groove is the key factor of decision battery size, thus if the out-of-shape of endless groove, the size of battery could not be stablized.
The present invention has solved the problems referred to above.An object of the present invention is, a kind of method and apparatus that is used to process cylindrical battery is provided, it can process an endless groove with uniform wall thickness and good dimensional stability reliably.
Summary of the invention
For achieving the above object, rotate battery case, apply equal axial compressive force to the two ends of battery case respectively simultaneously, and along battery case radially move inward the groove forming rolls, thereby on battery case, be shaped endless groove.Material flows to endless groove from the two ends of battery case, makes the wall thickness of endless groove even, and increases dimensional stability.
The anchor clamps that the outer circumferential surface of battery case can be opened/can close before endless groove is shaped are fixed, so that make the accuracy of battery case position higher.
Battery case is fixed on by a sept and is upright orientation in the support, and is sent to the device endless groove shaping position of making a gift to someone.The battery case of different size can be dealt with simply by changing sept.
Brief Description Of Drawings
Fig. 1 is the schematic diagram according to the structure of processing unit (plant) of the present invention;
Fig. 2 is a schematic side view, has shown the primary structure of this processing unit (plant);
Fig. 3 is a cover view, has shown the support and the sept that are used for fixing battery case, and Fig. 3 A is the stereogram of support and sept, and Fig. 3 B is support and sept vertical cross section;
Fig. 4 shows the fixing battery case of anchor clamps that a quilt can be opened/can close;
Fig. 5 shows the tight battery case of core axial compression;
Fig. 6 shows by the be shaped battery case of endless groove of groove forming rolls;
Fig. 7 is the operation chronogram of tabular cam;
Fig. 8 is the partial view of the amplification of endless groove: and
Fig. 9 shows the common process of processing groove.
Implement best mode of the present invention
Fig. 1 is the schematic diagram according to the structure of processing unit (plant) 10 of the present invention.Add that device 10 comprises a conveyer belt 14, be used for transmitting support 13, be fixed with battery case 12 on the support 13 in arrow X indicated direction.Workpiece loading device 16 is installed on the conveyer belt 14, circular dividing table 18 is used for the battery case 12 that receives from workpiece loading device 16 is sent to endless groove shaping position A, be used for that the main apparatus system 20 of shaping endless groove is positioned at endless groove shaping position A on battery case 12, the battery case 12 that workpiece discharge mechanism 22 is used for being formed with endless groove 12a is discharged to conveyer belt 14.
Circular dividing table 18 can rotate along the direction (clockwise) shown in the arrow Z is interrupted by the drive source (not shown), and externally on the circumferential edges, has second semi-circular groove 32 that limits with equal intervals.The center of curvature of each second semi-circular groove 32 is aimed at the center of curvature of first semi-circular groove 26 at " loaded " position C, and in this position, support 13 is connect down from workpiece loading device 16.Fixed guide 34 is installed in the position around circular dividing table 18, and second brace table 36 that is used for supporting bracket 13 be installed in circular dividing table 18 below.Second brace table 36 has an opening 38 in endless groove shaping position A (see figure 2).
The structure of workpiece discharge mechanism 22 is identical with workpiece loading device 16, one second rotating platform 40 is arranged, it can rotate along the direction (counterclockwise) shown in the arrow Y is interrupted by the drive source (not shown), and second rotating platform 40 externally has the 3rd semi-circular groove 42 that limits with equal intervals on the circumferential edges.The center of curvature of each the 3rd semi-circular groove 42 is aimed at the center of curvature of second semi-circular groove 32 at unloading position D, in this position, support 13 is unloaded from circular dividing table 18, and aim at the central axis of conveyer belt 14 at unloading position E, at unloading position E, support 13 is discharged on the conveyer belt 14.Unloading guide rail 44 is installed in position around second rotating platform 40, and the 3rd brace table 46 that is used for supporting bracket 13 be installed in second rotating platform 40 below.
As shown in Figure 2, main apparatus system 20 comprises a base fixture 50, and it is used for fixing the blind end 12b of battery case 12; An openend fixture 52, it is used for fixing the openend 12c of battery case 12; A hold down gag 54, it is by base fixture 50 and openend fixture 52, in axially (arrow L indicated direction) the corresponding two ends of battery case 12 is applied equal pressure; A whirligig 56, when battery case 12 compacted devices 54 compressed, it was used to rotate battery case 12; And a rolling device 58, it is used for groove forming rolls 57 is pressed near the openend of battery case 12, with shaping endless groove 12a on battery case 12.
This openend fixture 52 has a push rod 70, and it is used for the openend 12c of supports battery enclosure 12.Push rod 70 is fixed on the end of a key axle 72, and by bearing 78, this key axle 72 rotatably is supported on the upper axial guide rail 76, and this axial guidance can move back and forth along track 74.
Hold down gag 54 has one first tabular cam (drive unit) 80, and it can be by the motor (not shown) and the circular dividing table 18 collaborative rotations of rotary indexing table 18.One end of first connecting rod 82 is resisted against on the first tabular cam 80, and connecting rod 82 is supported by a fulcrum 84 swingably at the cardinal principle mid portion, and at the other end opening 86 is arranged, and cam follower 88 is inserted in the opening 86.
Cam follower 88 is fixed on the axle 92, and axle 92 is installed in can be on travelling backwards movable slider 90 on the guide rail 74.Upper springs 94a is between slide block 90 and upper axial guide rail 76.Lower springs 94b has identical coefficient of elasticity with upper springs 94a, and it is between bottom axial guidance 76 and retaining element.
Whirligig 56 has a motor 96 and a belt 99, and belt centers on and the driving wheel 98a of motor 96 couplings and the driven pulley 98b motion of meshing with key axle 72.
The anchor clamps 116 that can open/can close are positioned at endless groove shaping position A.These anchor clamps 116 that can open/can close have a pair of vee- block 118a, 118b, before endless groove 12a is shaped, vee-block can be mutually under the effect of drive source (not shown) near or leave, to step up the external peripheral surface of battery case 12, the position of self-contained battery shell 12 thus.
As shown in Figure 3A, the shape of support 13 is roughly cylindrical shape, and the heart is porose 120 therein, and the diameter in hole is consistent with the external diameter of the blind end 12b of battery case 12.Support 13 is a weekly form and circumferential groove 122 is arranged outside, first to the 3rd semi-circular groove, 26,32,42 engagements of itself and first rotating platform 24, circular dividing table 18 and second rotating platform 40.Interchangeable sept 124 is positioned at hole 120, and its length depends on the axial length of battery case 12.Shown in Fig. 3 B, sept 124 is preferably taper at the position that contacts with the blind end 12b of battery case 12.
Operation with processing unit (plant) 10 of said structure will be described below.
The external diameter of battery case 12 is 18mm, and wall thickness is 0.3mm, and the external diameter of support 13 is 40mm.Circular dividing table 18 intermittently rotates, and pitch time is 5 seconds.Upper and lower spring 94a, the coefficient of elasticity of 94b is 50kg/mm, it is 3.5mm that spring begins to be compressed into length.According to timing figure shown in Figure 7, the first and second tabular cams 80,100 are rotated, and the anchor clamps 116 that can open/can close carry out Kai Heguan.
As shown in Figure 1, the battery case 12 that is fixed on the vertical direction by support 13 transmits along the arrow directions X by conveyer belt 14.Accepting position B, battery case 12 is fixed on along in one first semi-circular groove 26 of first rotating platform 24 of arrow Y direction rotation.When being placed into first brace table 30, support 13 along arrow Y direction by first rotating platform 24 and load track rail 28 transmission of guiding, then in " loaded " position C is fixed on one second semi-circular groove 32 of circular dividing table 18.
Circular dividing table 18 intermittently rotates along the direction shown in the arrow Z.Be fixed on the support 13 in second semi-circular groove 32, endless groove shaping position A is sent in be fixed guide rail 34 and circular dividing table 18 guiding.Shown in Fig. 2 and 4, at endless groove shaping position A, support 13 is placed on the brace table 60 of base fixture 50, and brace table 60 is inserted in the opening 38 of second brace table 36.
When circular dividing table 18 when endless groove shaping position A pauses, vee-block 118a, the 118b of the anchor clamps 116 that can open/can close are close mutually, clamp the outer circumference surface be positioned at the battery case 12 on the support 13, at this battery case 12 are placed axial location.During this period of time, the first tabular cam 80 of hold down gag 54 rotates along the direction shown in the arrow, makes first connecting rod 82 around fulcrum 84 swings, and the end of connecting rod 82 is resisted against the edge of the excircle of the first tabular cam 80.Cam follower 88 is located at opening 86 places of the other end of first connecting rod 82, itself and the direction coordinated movement of various economic factors to battery case 12 of axle 92 and slide block 90.Upper axial guide rail 76 being fixed on moving down of upper springs 94a on the slide block 90, moves to the direction of battery case 12 along track 74.
After the motor 96 of tumbler 56 starts, by driving wheel 98a, belt 99 and driven pulley 98b rotatable key axle 72.Push rod 70 rotates on one side, to battery case 12 directions moves on one side, and be fixed on the openend 12c of battery case 12.
At this moment, vee-block 118a, the 118b of the anchor clamps 116 that can open/can close leave mutually, discharge battery case 12 (see figure 5)s.
The second tabular cam 100 of rolling device 58, rotate along the direction shown in the arrow, make the second connecting rod 102 at edge of the exterior periphery be resisted against the second tabular cam 100 around fulcrum 104 swings, make slide block 110 move thus along the direction shown in the arrow r (along battery case 12 radially inside).Groove forming rolls 57 near openend 12c, inside radial compression battery case 12, an endless groove 12a (see figure 6) is shaped on battery case 12.Move a segment distance by groove forming rolls 57 in the direction shown in the arrow r, behind the endless groove 12a that is shaped on the battery case 12, groove forming rolls 57 and push rod 70 leave battery case 12, finish the forming process of endless groove 12a thus.
After finishing the forming process of endless groove 12a, when circular dividing table 18 when the direction shown in the arrow Z is intermittently rotated, be fixed guide rail 34 of battery case 12 imports workpiece unloading position D, in this installs to one the 3rd semi-circular groove 42 of second rotating platform 40 of workpiece discharge mechanism 22.When second rotating platform 40 when the direction shown in the arrow Y is rotated, battery case 12 sends on the conveyer belt 14 from unloading position E along unloading guide rails 44.
In this embodiment, when the blind end 12b of battery case 12 is fixed on brace table 60, and push rod 70 by upper and lower spring 94a and 94b, is axially applying equal pressure at the two ends of battery case 12 respectively when being fixed on the openend 12c of battery case 12.Therefore, when groove forming rolls 57 moves in the direction shown in the arrow, when being shaped an endless groove 12a on battery case 12, material is respectively from the two ends of battery case 12, that is, and and blind end 12b and openend 12c, smoothly, plastic deformation reliably.
Therefore, as shown in Figure 8, battery case 12 does not change at the wall thickness of the part of endless groove 12a correspondence, and in order to obtain necessary mechanical strength reliably, all wall thickness that comprise the battery case 12 of endless groove 12a all are uniform.Owing to can stably form the needed shape of endless groove 12a, greatly improve the stability of battery size.
If produce the battery case 12 of different axial lengths, the hole 120 interior septs 124 that then will insert support 13 change the sept that another has Len req into.So just can be with the Height Adjustment of the openend 12c of each battery case 12 that will produce to needed reference position, so that can easily be adapted to have the battery case 12 of different length.
As shown in Figure 2, in this embodiment, when being rotated device 56 rotations, push rod 70 moves to brace table 60 directions by hold down gag 54.Yet, the tumbler that brace table 60 also can be arranged to have hold down gag and be used for push rod.
A plurality of main apparatus systems 20 can be installed in the circular dividing table 18 or the first and second tabular cams 80,100 around, hold down gag 54 and rolling device 58 can be used as fexible unit, be used for moving a plurality of brace tables 60 and a plurality of groove forming rolls 57, harmonious each other, process a plurality of battery cases 12 of sending into circular dividing table 18 simultaneously, so that produce with bigger productivity ratio.Circular dividing table can replace with the linear step motion device.
Industrial applicability
Employing according to of the present invention for processing cylindrical battery method and apparatus since respectively to The two ends of battery case apply equal axial compressive force, and material flows to ring smoothly from the two ends of battery case The shape groove is so that at this uniform endless groove of wall thickness that is shaped reliably. Therefore, the dimensionally stable of battery Property increases greatly.
Because the anchor clamps that battery case can be left/can close are located very exactly, the process of processing endless groove Finish with very high precision. Because battery case is fixed on the support with interchangeable sept, therefore, The battery case that can adapt at an easy rate different model and size.
Claims (8)
1. a method of processing cylindrical battery comprises the steps:
Columnar battery case (12) at the bottom of the rotating band, (12b 12c) applies equal axial compressive force to the two ends of battery case (12) respectively simultaneously; And
Along the battery case (12) that rotates radially, move inward groove forming rolls (57), an endless groove (12a) thus is shaped near the openend of battery case (12).
2. according to the method for claim 1, also comprise: before described endless groove (12a) is shaped, clamp the outer circumferential surface of described battery case (12), described battery case (12) is located.
3. device that is used to process cylindrical battery comprises:
A base fixture (50), it is used for fixing the blind end (12b) of the columnar battery case (12) of being with the end;
An openend fixture (52), it is used for fixing the openend (12c) of described battery case (12);
A hold down gag (54), it is by described base fixture (50) and described openend fixture (52), in that axially (12b 12c) applies equal pressure to the two ends of battery case (12) respectively;
A whirligig (56), when battery case (12) by described hold down gag (54) when compressing, it is used to rotate described battery case (12); And
A rolling device (58), it is used for groove forming rolls (57) is pressed near the openend of described battery case (12), to go up shaping endless groove (12a) at battery case (12).
4. according to the device of claim 3, wherein said hold down gag (54) comprising:
Drive unit (80), it is used for described battery case (12) is shifted to and moved apart to described openend fixture (52) or described base fixture (50); And
(94a, 94b), it lays respectively on described openend fixture (52) or the described base fixture (50) spring, and has mutually the same coefficient of elasticity.
5. according to the device of claim 3, comprise also opening/anchor clamps (116) that can close that it is used for clamping the outer circumferential surface of described battery case (12) before described endless groove (12a) is shaped, and described battery case (12) is located.
6. according to the device of claim 3, also comprise a support (13), it remains on vertical direction with battery case (12), so that with feed arrangement (18) described battery case (12) is sent to the endless groove shaping position.
7. according to the device of claim 6, also comprise a sept (124), it is positioned at described support (13), can be replaced, and its length depends on the axial length of described battery case (12).
8. according to the device of claim 6, wherein said support (13) has a circumferential slot (122), is positioned on the outer surface this groove and described feed arrangement (18) engagement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP212143/95 | 1995-08-21 | ||
| JP21214395A JP3968790B2 (en) | 1995-08-21 | 1995-08-21 | Method and apparatus for manufacturing cylindrical battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1193415A true CN1193415A (en) | 1998-09-16 |
Family
ID=16617608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96196366A Pending CN1193415A (en) | 1995-08-21 | 1996-08-20 | Method of producing cylindrical cell and apparatus therefor |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3968790B2 (en) |
| CN (1) | CN1193415A (en) |
| AU (1) | AU6710396A (en) |
| WO (1) | WO1997007551A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100468827C (en) * | 2005-12-20 | 2009-03-11 | 深圳华粤宝电池有限公司 | Battery cylindrical shell and cylindrical anti-explosion battery and its processing method and device |
| CN102117897A (en) * | 2011-01-28 | 2011-07-06 | 福建南平南孚电池有限公司 | Rolling device and method for cylindrical battery shell |
| CN102263207A (en) * | 2011-06-25 | 2011-11-30 | 江苏久诺杰电子科技有限公司 | Grooving device for battery case |
| CN110226243A (en) * | 2017-03-24 | 2019-09-10 | 松下知识产权经营株式会社 | Battery can and cylindrical battery |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09199092A (en) * | 1996-01-16 | 1997-07-31 | Matsushita Electric Ind Co Ltd | Cylindrical battery and its manufacture |
| JP3439905B2 (en) * | 1996-03-13 | 2003-08-25 | 松下電器産業株式会社 | Battery case can processing equipment |
| JP4556387B2 (en) * | 2003-06-24 | 2010-10-06 | パナソニック株式会社 | Method for manufacturing cylindrical battery |
| JP5007048B2 (en) * | 2005-06-16 | 2012-08-22 | パナソニック株式会社 | Cylindrical battery manufacturing method and cylindrical battery grooving apparatus |
| CN115041562A (en) * | 2021-03-08 | 2022-09-13 | 株式会社Lg新能源 | Multi-roller system, battery can molding device and molding method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2725395B2 (en) * | 1989-08-16 | 1998-03-11 | 日立電子エンジニアリング株式会社 | Grooving device for can members |
| JP2864299B2 (en) * | 1991-03-19 | 1999-03-03 | 東芝電池株式会社 | Annular groove forming device for cylindrical battery case |
| JPH0845513A (en) * | 1994-07-29 | 1996-02-16 | Fuji Photo Film Co Ltd | Manufacture of battery and its device |
-
1995
- 1995-08-21 JP JP21214395A patent/JP3968790B2/en not_active Expired - Fee Related
-
1996
- 1996-08-20 AU AU67103/96A patent/AU6710396A/en not_active Abandoned
- 1996-08-20 CN CN96196366A patent/CN1193415A/en active Pending
- 1996-08-20 WO PCT/JP1996/002328 patent/WO1997007551A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100468827C (en) * | 2005-12-20 | 2009-03-11 | 深圳华粤宝电池有限公司 | Battery cylindrical shell and cylindrical anti-explosion battery and its processing method and device |
| CN102117897A (en) * | 2011-01-28 | 2011-07-06 | 福建南平南孚电池有限公司 | Rolling device and method for cylindrical battery shell |
| CN102263207A (en) * | 2011-06-25 | 2011-11-30 | 江苏久诺杰电子科技有限公司 | Grooving device for battery case |
| CN110226243A (en) * | 2017-03-24 | 2019-09-10 | 松下知识产权经营株式会社 | Battery can and cylindrical battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3968790B2 (en) | 2007-08-29 |
| WO1997007551A1 (en) | 1997-02-27 |
| JPH0963548A (en) | 1997-03-07 |
| AU6710396A (en) | 1997-03-12 |
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