CN118492139B - Necking die frame for battery shell processing - Google Patents
Necking die frame for battery shell processing Download PDFInfo
- Publication number
- CN118492139B CN118492139B CN202410956233.2A CN202410956233A CN118492139B CN 118492139 B CN118492139 B CN 118492139B CN 202410956233 A CN202410956233 A CN 202410956233A CN 118492139 B CN118492139 B CN 118492139B
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- necking
- die
- rod
- seat
- necking die
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- 238000012545 processing Methods 0.000 title claims abstract description 33
- 230000008093 supporting effect Effects 0.000 claims abstract description 28
- 238000003825 pressing Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 15
- 230000003068 static effect Effects 0.000 claims abstract description 12
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 21
- 238000003754 machining Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 241000446313 Lamella Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention relates to the technical field of battery shell processing, in particular to a necking die frame for battery shell processing, which comprises the following components: the device comprises an upper pressing plate, a molding die frame, a necking molding assembly and a limiting sleeve seat, wherein the limiting sleeve seat comprises a pushing seat and a supporting disc which are fixed on the surface of the molding die frame, a spring rod is arranged on the top surface of the supporting disc, the supporting sleeve seat is fixedly connected with the supporting disc through the spring rod, the necking molding assembly is fixedly arranged on the bottom surface of the upper pressing plate, and the necking molding assembly comprises a static sliding seat, a bolt rod, a necking die valve and a wedge pushing plate which is fixed on one side of the necking die valve. According to the invention, by arranging the novel moving necking structure, the radial movement of the necking die petals is formed under the action of the bolt rod and the inclined wedge pushing plate by utilizing the stamping acting force between the upper pressing plate and the forming die frame, the neutrality and the stability of the die in the necking process are ensured, the machining precision is greatly improved, the die assembly necking is carried out in the radial movement of a plurality of necking die petals, the size and the shape of the opening of the battery shell are more consistent, the deviation is reduced, and the sealing performance and the overall quality of the battery shell are improved.
Description
Technical Field
The invention relates to the technical field of battery shell processing, in particular to a necking die frame for battery shell processing.
Background
In the manufacturing process of the battery case, the necking process is a key step, and particularly when the cylindrical battery case is manufactured, the quality of the necking process directly influences the sealability and performance of the battery. Traditional battery case necking processing is mainly completed through a hydraulic die or a mechanical die. These conventional molds have some drawbacks in practical use.
The existing necking die is mainly processed in a linear motion mode. Specifically, the conventional necking die generally includes an upper die and a lower die, and the shrinkage of the opening of the battery case is achieved by pressing the upper die toward the lower die. However, such a linearly moving necking die has the following problems:
1) The machining precision is not high: when the traditional necking die is used for necking the battery shell opening, the problem of insufficient machining precision is easy to occur due to the precision of the die and the centering in the machining process, so that the size and the shape deviation of the battery shell opening are larger, and the subsequent battery assembly and sealing performance are affected.
2) Workpiece deformation and damage: because the traditional necking die generally adopts unidirectional extrusion force, the battery shell is easy to deform and damage in the processing process, and particularly in an opening part, cracks or dents can occur, so that the product quality is seriously affected.
3) The processing efficiency is low: when the traditional necking die is used for processing, the die position is usually required to be adjusted and calibrated for multiple times, so that the precision and consistency of the workpiece are ensured, the operation difficulty is increased, and the production efficiency is reduced.
4) Die wear and maintenance costs are high: in the high-frequency use process of the traditional necking die, the die parts are easy to wear and are required to be frequently maintained and replaced, so that the production cost is increased, and the production continuity and stability are affected.
The invention provides a novel necking structure for processing the wedge type battery shell to solve the existing problems, and aims to achieve the aims of solving the problems and improving the practical value through the technology.
Disclosure of Invention
The present invention aims to solve one of the technical problems existing in the prior art or related technologies.
The technical scheme adopted by the invention is as follows: a necking die frame for processing a battery shell, comprising: the device comprises an upper pressing plate, a molding die frame, a necking molding assembly and a limiting sleeve seat, wherein the limiting sleeve seat comprises a pushing seat and a supporting disc which are fixed on the surface of the molding die frame, a spring rod is arranged on the top surface of the supporting disc and fixedly connected with a supporting sleeve seat through the spring rod, the necking molding assembly is fixedly arranged on the bottom surface of the upper pressing plate and comprises a static sliding seat, a bolt rod, a necking die and a wedge push plate which is fixed on one side of the necking die, a sliding guide strip is arranged in the static sliding seat, the top end of the wedge push plate is in sliding connection with the bottom surface of the sliding guide strip, the bolt rod is in sliding sleeve connection with the inner side of the static sliding seat, a sliding pin is arranged on the top end of the bolt rod, wedge guide grooves sleeved on the surface of the sliding pin are formed in the surface of the sliding plate, the necking die and the bolt rod are arranged in a plurality of one-to-one correspondence mode, the necking die is in a fan-shaped and circumferential combination to form an annular structure, and the surface of the upper pressing plate is fixedly provided with a mandrel, and the mandrel is located at the combined position of the mandrel and the axis center of the mandrel.
The present invention may be further configured in a preferred example to: the upper pressing plate and the surface of the forming die frame are provided with guide rod groups which are connected with each other, and each guide rod group comprises a telescopic slide rod and a slide rod sleeve, wherein the telescopic slide rod is respectively fixed on the surface of the forming die frame, and the slide rod sleeve is fixed on the bottom surface of the forming die frame.
The present invention may be further configured in a preferred example to: the bottom surface of the necking die lamella is in an arc chamfer shape, one side of the necking die lamella, which is relatively far away from the inclined wedge pushing plate, is provided with a necking convex for battery shell processing, and the surface of the necking convex is in smooth transition.
The present invention may be further configured in a preferred example to: the top end of the core mould rod is provided with a flange seat fixedly connected with the surface of the upper pressing plate, and the flange seat and the core mould rod are positioned on the axis of the support sleeve seat.
The present invention may be further configured in a preferred example to: one side of the inclined wedge pushing plate is provided with a ridge guide groove parallel to the inclined wedge guide groove, the surface of the bolt rod is rotatably provided with a guide hook, and one end of the guide hook is in sliding butt joint with the surface of the ridge guide groove.
The present invention may be further configured in a preferred example to: the surface of the bolt rod is fixedly provided with a spring piece, and one end of the spring piece is elastically abutted with the surface of the guide hook.
The present invention may be further configured in a preferred example to: the wedge guide groove is obliquely arranged and gradually approaches the surface of the core mold rod from the top end to the bottom end, and the inner side of the wedge guide groove and the surface of the sliding pin of the plug pin rod are subjected to surface hardening treatment.
The present invention may be further configured in a preferred example to: the surface of the supporting sleeve seat is provided with a limiting hole for sleeving the battery shell, the spring rod is of an elastic telescopic rod structure, and the surface of the pushing seat is provided with a hollow groove for accommodating the supporting sleeve seat.
The beneficial effects obtained by the invention are as follows:
1. according to the invention, by arranging the novel moving necking structure, the radial movement of the necking die petals is formed under the action of the bolt rod and the inclined wedge pushing plate by utilizing the stamping acting force between the upper pressing plate and the forming die frame, the neutrality and the stability of the die in the necking process are ensured, the machining precision is greatly improved, the die assembly necking is carried out in the radial movement of a plurality of necking die petals, the size and the shape of the opening of the battery shell are more consistent, the deviation is reduced, and the sealing performance and the overall quality of the battery shell are improved.
2. According to the invention, the plurality of necking die petals can gradually apply pressure in the necking process when wedge movement is carried out in the advancing and pushing movement of the bolt rod, so that the problems of workpiece deformation and damage caused by unidirectional extrusion of the traditional die are avoided, cracks or dents are not easy to occur in the processing process of the battery shell, and the product quality is remarkably improved.
3. In the invention, the complete die structure is formed by radial die assembly of the necking die valve and internal support of the core die rod, so that necking processing is converted into die molding, the processing is more efficient, the operation difficulty is reduced, the production efficiency is improved, in addition, the die part of the structure has better wear resistance, longer service life, lower maintenance frequency and replacement cost and obviously lower production cost.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of a mounting structure of a necking formation component in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view showing a surface structure of a molding die carrier according to an embodiment of the present invention;
FIG. 4 is a schematic view illustrating an inner structure of a static slider according to an embodiment of the present invention;
FIG. 5 is a schematic view of a mandrel bar according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of the mounting structure of a necking die flap and a cam thrust plate in accordance with one embodiment of the present invention;
Fig. 7 is a schematic view of a necking die flap mounting structure in accordance with an embodiment of the invention.
Reference numerals:
100. An upper press plate; 110. a guide rod group; 120. a core mold rod; 121. a flange seat; 200. forming a die carrier;
300. A necking forming assembly; 310. a static slide seat; 320. a latch rod; 330. necking die petals; 340. wedge pushing plate; 350. a guide hook; 311. a sliding guide bar; 341. wedge guide slot; 342. a ridge guide groove; 351. a spring piece;
400. A limit sleeve seat; 410. pushing the base; 420. a support plate; 430. a sleeve supporting seat; 421. a spring rod.
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.
It is to be understood that this description is merely exemplary in nature and is not intended to limit the scope of the present invention.
The following describes a necking die frame for processing a battery case according to some embodiments of the present invention with reference to the accompanying drawings.
Referring to fig. 1 to 7, the present invention provides a necking die frame for processing a battery case, including: the upper pressing plate 100, the molding die carrier 200, the necking molding assembly 300 and the limiting sleeve seat 400, the limiting sleeve seat 400 comprises a pushing seat 410 and a supporting plate 420 which are fixed on the surface of the molding die carrier 200, a spring rod 421 is arranged on the top surface of the supporting plate 420, the supporting plate 430 is fixedly connected with a supporting sleeve seat 430 through the spring rod 421, the necking molding assembly 300 is fixedly mounted on the bottom surface of the upper pressing plate 100, the necking molding assembly 300 comprises a static slide seat 310, a bolt rod 320, a necking die flap 330 and a wedge push plate 340 which is fixed on one side of the necking die flap 330, a sliding guide strip 311 is arranged in the static slide seat 310, the top end of the wedge push plate 340 is in sliding connection with the bottom surface of the sliding guide strip 311, the bolt rod 320 is in sliding sleeve connection with the inner side of the static slide seat 310, a sliding pin is arranged on the top end of the bolt rod 320, the wedge push plate 340 is provided with wedge guide grooves 341 which are sleeved on the surface of the sliding pin, the necking die flap 330, the necking die flap 340 and the bolt rod 320 are arranged in a plurality of one-to-one correspondence, the necking die flap 330 is fixedly mounted on one side of the wedge push plate 340, the plurality of the necking die flaps are in a sector shape and are circumferentially combined to form a ring-shaped core die 120, and the mandrel 120 is fixedly mounted on the surface of the mandrel 120 is arranged on the mandrel 120, which is fixedly combined on the surface of the mandrel 120.
In this embodiment, the upper platen 100 and the molding die frame 200 are provided with guide bar groups 110 connected to each other on the surfaces thereof, and the guide bar groups 110 include telescopic slide bars respectively fixed to the surfaces of the molding die frame 200 and slide bar sleeves fixed to the bottom surfaces of the molding die frame 200.
Specifically, the guide rod group 110 is used for guiding the upper pressing plate 100 and the forming die frame 200 to be in accurate butt joint, so that the effect on the surface of the battery case is ensured to be uniform.
In this embodiment, the bottom surface of the necking die 330 is in a rounded chamfer shape, a side of the necking die 330, which is relatively far away from the wedge push plate 340, is provided with a molding protrusion for necking for battery case processing, and the surface of the molding protrusion is in smooth transition.
Specifically, the wedge push plate 340 with different convex structures can be adopted to process battery cases with different necking shapes, so that the processing steps are simplified, and the consistency of processed products is improved.
In this embodiment, a flange seat 121 fixedly connected to the surface of the upper platen 100 is provided at the top end of the mandrel bar 120, and the flange seat 121 and the mandrel bar 120 are located on the axis of the support sleeve seat 430.
Specifically, the replaceable mandrel 120 structure is used for adapting to different battery shells, and internal bracing is performed, so that local transitional deformation of the battery shells is avoided.
In this embodiment, a ridge guide groove 342 parallel to the wedge guide groove 341 is provided at one side of the wedge push plate 340, and a guide hook 350 is rotatably installed on the surface of the latch lever 320, and one end of the guide hook 350 slidably abuts against the surface of the ridge guide groove 342.
In this embodiment, the surface of the latch lever 320 is fixedly mounted with a spring plate 351, and one end of the spring plate 351 elastically abuts against the surface of the guide hook 350.
Specifically, the guiding hook 350 guides the relative movement between the wedge push plate 340 and the necking die 330, so that the movement stability of the necking die 330 is improved, and the phenomenon of rolling and the like in the sliding process of the necking die 330 is avoided.
In this embodiment, the wedge guide 341 is disposed obliquely and gradually approaches the surface of the mandrel bar 120 from the top to the bottom, and both the inner side of the wedge guide 341 and the surface of the slide pin of the plug pin lever 320 are subjected to a surface hardening treatment.
In this embodiment, the surface of the supporting sleeve base 430 is provided with a limiting hole for sleeving the battery case, the spring rod 421 is of an elastic telescopic rod structure, and the surface of the pushing base 410 is provided with a hollow groove for accommodating the supporting sleeve base 430.
Specifically, the sleeve support base 430 is used for sleeve connection positioning of the battery shell, and can freely retract in necking processing.
The working principle and the using flow of the invention are as follows:
In the necking process for processing the battery case, the battery case is led to enter the inside of the supporting sleeve seat 430 one by one through manual feeding or mechanical feeding mode to be sleeved and limited and supported through the supporting disc 420, and the upper pressing plate 100 is driven and controlled by a punching machine to move downwards so as to be guided by the guide rod group 110; the core mold rod 120 and the necking forming assembly 300 synchronously descend to respectively sleeve the inner side and the outer side of the battery shell, and necking processing is carried out through the necking forming assembly 300 under the internal supporting action of the core mold rod 120;
The inner side of the necking die 330 contacts with the surface of the battery shell in the whole descending movement of the necking forming assembly 300, the necking die 330 is led to expand outwards in radial direction by the guiding of the guide opening at the bottom surface of the necking die 330 so that the battery shell enters the working section of each necking die 330, the supporting sleeve seat 430 can synchronously and elastically retract, after the top surface of the pushing seat 410 contacts with the bottom end of the plug rod 320, the pin rod at the top end of the plug rod 320 slides and guides in the inner side of the wedge guide groove 341 so as to realize the radial inward movement of the necking die 330, the wedge push plates 340 are mutually close to each other and press the periphery of the battery shell, and the wedge movement of the plurality of necking die 330 can gradually apply pressure in the necking process, so that the problems of workpiece deformation and damage caused by unidirectional extrusion of the traditional die are avoided, and the neutrality and stability of the die in the necking process are ensured; after necking forming, the forming die carrier 200 is separated from the upper pressing plate 100, the bolt rod 320 falls down under gravity to guide the necking die petals 330 to separate from the outer surface of the battery shell, and the battery shell is automatically reset after unloading for next processing preparation.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a necking die carrier for battery case processing which characterized in that includes: the device comprises an upper pressing plate (100), a forming die carrier (200), a necking forming assembly (300) and a limiting sleeve seat (400);
The limiting sleeve seat (400) comprises a pushing seat (410) and a supporting disc (420), wherein the pushing seat (410) and the supporting disc (420) are fixed on the surface of the forming die carrier (200), and a spring rod (421) is arranged on the top surface of the supporting disc (420) and is fixedly connected with a supporting sleeve seat (430) through the spring rod (421);
The necking forming assembly (300) is fixedly arranged on the bottom surface of the upper pressing plate (100), the necking forming assembly (300) comprises a static sliding seat (310), a bolt rod (320), a necking die valve (330) and a wedge push plate (340) fixed on one side of the necking die valve (330), a sliding guide strip (311) is arranged on the inner side of the static sliding seat (310), the top end of the wedge push plate (340) is in sliding connection with the bottom surface of the sliding guide strip (311), the bolt rod (320) is in sliding sleeve connection with the inner side of the static sliding seat (310), and a sliding pin is arranged on the top end of the bolt rod (320);
The surface of the inclined wedge pushing plate (340) is provided with inclined wedge guide grooves (341) sleeved on the surface of the sliding pin, and the number of the necking die petals (330), the inclined wedge pushing plate (340) and the bolt rods (320) is a plurality of and are arranged in a one-to-one correspondence manner;
The necking die petals (330) are fixedly arranged on one side of the inclined wedge pushing plate (340), a plurality of necking die petals (330) are fan-shaped and circumferentially combined to form an annular structure, a core mold rod (120) is fixedly arranged on the surface of the upper pressing plate (100), and the core mold rod (120) is positioned at the axle center of the combination of the inclined wedge pushing plates (340);
The inner side of the necking die flap (330) is contacted with the surface of the battery shell in the whole descending movement of the necking forming assembly (300), the necking die flap (330) is led to outwards slide in a radial direction through the guiding of a bottom surface guide opening of the necking die flap (330) so that the battery shell enters the working interval of each necking die flap (330), the supporting sleeve seat (430) can synchronously and elastically retract, after the top surface of the pushing seat (410) is contacted with the bottom end of the bolt rod (320), the bolt rod at the top end of the bolt rod (320) is led to slide in the inner side of the inclined wedge guide groove (341) to realize the radial inward movement of the necking die flap (330), the inclined wedge pushing plates (340) are mutually close to and press against the periphery of the battery shell, and the inclined wedge movement of the plurality of necking die flaps (330) can gradually apply pressure in the necking process, so that the problem of workpiece deformation and damage caused by the unidirectional extrusion of the traditional die is avoided, and the neutrality and stability of the die in the necking process are ensured; after necking forming, the forming die carrier (200) is separated from the upper pressing plate (100), the bolt rod (320) falls down under gravity to guide the necking die petals (330) to separate from the outer surface of the battery shell, and the battery shell is automatically reset after unloading for next processing preparation.
2. The necking die frame for processing the battery case according to claim 1, wherein the surfaces of the upper pressing plate (100) and the forming die frame (200) are provided with a guide rod group (110) which is connected with each other, and the guide rod group (110) comprises a telescopic sliding rod which is respectively fixed on the surface of the forming die frame (200) and a sliding rod sleeve which is fixed on the bottom surface of the forming die frame (200).
3. The necking die frame for processing the battery case according to claim 1, wherein a flange seat (121) fixedly connected with the surface of the upper pressing plate (100) is arranged at the top end of the core die rod (120), and the flange seat (121) and the core die rod (120) are positioned on the axis of the supporting sleeve seat (430).
4. The necking die frame for processing the battery case according to claim 1, wherein the bottom surface of the necking die flap (330) is in a circular arc chamfer shape, a profile protrusion for necking the battery case is arranged on one side, relatively far away from the wedge pushing plate (340), of the necking die flap (330), and the surface of the profile protrusion is in smooth transition.
5. The necking die frame for processing the battery case according to claim 1, wherein a ridge guide groove (342) parallel to the wedge guide groove (341) is arranged on one side of the wedge push plate (340), a guide hook (350) is rotatably mounted on the surface of the plug rod (320), and one end of the guide hook (350) is in sliding abutting connection with the surface of the ridge guide groove (342).
6. The necking die mold frame for battery case processing according to claim 1, wherein a spring piece (351) is fixedly installed on the surface of the latch rod (320), and one end of the spring piece (351) is elastically abutted against the surface of the guide hook (350).
7. The necking die mold frame for battery case processing according to claim 1, wherein the wedge guide groove (341) is obliquely arranged and gradually approaches to the surface of the mandrel bar (120) from top to bottom, and both the inner side of the wedge guide groove (341) and the surface of the sliding pin of the plug pin rod (320) are subjected to surface hardening treatment.
8. The necking die frame for processing the battery shell according to claim 1, wherein a limiting hole for sleeving the battery shell is formed in the surface of the supporting sleeve seat (430), the spring rod (421) is of an elastic telescopic rod structure, and a hollow groove for accommodating the supporting sleeve seat (430) is formed in the surface of the pushing seat (410).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410956233.2A CN118492139B (en) | 2024-07-17 | 2024-07-17 | Necking die frame for battery shell processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410956233.2A CN118492139B (en) | 2024-07-17 | 2024-07-17 | Necking die frame for battery shell processing |
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| CN118492139A CN118492139A (en) | 2024-08-16 |
| CN118492139B true CN118492139B (en) | 2024-09-20 |
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| CN202410956233.2A Active CN118492139B (en) | 2024-07-17 | 2024-07-17 | Necking die frame for battery shell processing |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976678A (en) * | 2019-12-28 | 2020-04-10 | 保隆(安徽)汽车配件有限公司 | Large-angle necking die for beveled thin-wall pipe fitting |
| CN219703254U (en) * | 2023-04-10 | 2023-09-19 | 湖南绿意华美环保科技有限公司 | A device that contracts for side's pipe end |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0990490B1 (en) * | 1998-10-02 | 2001-11-07 | Hans Oetiker AG Maschinen- und Apparatefabrik | Device for positioning, clamping and compacting a ring-shaped holder |
| US7886661B1 (en) * | 2007-02-07 | 2011-02-15 | Ed Goff | Radial compression mechanism |
| CN106825274B (en) * | 2017-01-20 | 2018-08-14 | 山东省调水工程技术研究中心有限公司 | Large-diameter steel pipe flaring/necking module and moulding process |
| CN110170584A (en) * | 2019-06-25 | 2019-08-27 | 上海威克鲍尔通信科技有限公司 | A kind of polygon reducing device of tubing |
| CN117259566A (en) * | 2023-09-14 | 2023-12-22 | 江苏珀然股份有限公司 | Forging aluminum alloy wheel hub punching and expanding die |
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- 2024-07-17 CN CN202410956233.2A patent/CN118492139B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976678A (en) * | 2019-12-28 | 2020-04-10 | 保隆(安徽)汽车配件有限公司 | Large-angle necking die for beveled thin-wall pipe fitting |
| CN219703254U (en) * | 2023-04-10 | 2023-09-19 | 湖南绿意华美环保科技有限公司 | A device that contracts for side's pipe end |
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| CN118492139A (en) | 2024-08-16 |
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