CN107894307B - Vacuum helium detection mechanism for detecting tightness of battery top cover - Google Patents
Vacuum helium detection mechanism for detecting tightness of battery top cover Download PDFInfo
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- CN107894307B CN107894307B CN201711461001.6A CN201711461001A CN107894307B CN 107894307 B CN107894307 B CN 107894307B CN 201711461001 A CN201711461001 A CN 201711461001A CN 107894307 B CN107894307 B CN 107894307B
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- pressing
- plate
- upper top
- suction head
- top cover
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/202—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material using mass spectrometer detection systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/226—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
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- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The invention discloses a vacuum helium detection mechanism for detecting the tightness of a battery top cover, which comprises an upper top plate, a lower bottom plate, a downward-pressing blocking liquid injection mechanism, an upper top vacuumizing mechanism and a positioning jig, wherein the upper top plate and the lower bottom plate are supported by upright posts.
Description
Technical Field
The invention relates to automation equipment, in particular to a vacuum helium detection mechanism for detecting tightness of a battery top cover.
Background
In the battery production process, the detection of the tightness of the battery top cover is a very important procedure, because whether the tightness of the battery is good or not is directly related to the use safety of the battery. If the battery reaches-99903 Pa within 30S, the battery is acceptable, and if it does not reach-99903 Pa within 30S, the battery is unacceptable. At present, in the manufacturing process of the product, the sealing liquid injection hole is sealed by manually sticking sealing gummed paper, so that the consistency is relatively poor, and the air tightness detection effect can be directly influenced.
Disclosure of Invention
The invention aims to provide a vacuum helium detection mechanism for detecting the tightness of a battery top cover, so as to solve the problems in the background art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the vacuum helium detection mechanism for detecting the tightness of the battery top cover comprises an upper top plate, a lower bottom plate, a pressing-down plugging liquid injection mechanism, an upper top vacuumizing mechanism and a positioning jig, wherein the upper top plate and the lower bottom plate are supported by upright posts;
the pressing blocking liquid injection mechanism comprises two pressing cylinders, two pressing plates, pressing dies, blocking liquid injection hole cylinders, pressing limiting plates, pressing guide columns and pressing limiting cylinders, wherein the two pressing cylinders are symmetrically arranged on an upper top plate, piston rods of the pressing cylinders penetrate through the upper top plate and are connected with the pressing plates arranged below the upper top plate, the two pressing guide columns penetrate through the upper top plate, the lower ends of the two pressing guide columns are connected with the pressing plates, the upper ends of the two pressing guide columns are connected with the pressing limiting plates together, the two pressing limiting cylinders are arranged on the upper top plate, the piston rods of the two pressing limiting cylinders are respectively directed to the two ends of the pressing limiting plates, blocking liquid Kong Qigang is arranged on the lower end face of the pressing plates, the piston rods of the blocking liquid injection Kong Qigang are connected with the pressing dies, the pressing films are in sliding connection with the lower end faces of the pressing plates, and the lower end faces of the pressing dies are provided with elastic pressing blocks;
the upper jacking vacuum pumping mechanism comprises an upper jacking cylinder, a horizontal plate, a suction head and a suction head supporting plate, wherein the upper jacking cylinder is arranged on the lower bottom plate, the horizontal plate is arranged on the lower bottom plate through a supporting column, a piston rod of the upper jacking cylinder penetrates through the horizontal plate and is connected with the suction head supporting plate, and the suction head is arranged in the middle of the upper end face of the suction head supporting plate;
the positioning jig is arranged on the horizontal plate through the support and comprises a bottom die, a positioning seat and a sealing ring, wherein the bottom die is arranged on the support, the positioning seat is arranged on the bottom die, the sealing ring which is in contact with the top cover of the battery is arranged in the positioning seat, and an air extraction hole which is matched with the suction head and vertically penetrates through the bottom die and the support is formed in the middle of the positioning seat.
Further, when the piston rod of the pressing limiting cylinder is in an extending state, the two ends of the pressing limiting plate are propped against, and the piston rod of the pressing limiting cylinder is limited to extend further.
Further, when the piston rod of the jacking cylinder is in an extending state, the suction head is driven by the suction head supporting plate to be inserted into the air suction hole, and the suction head is connected with an external vacuum pump, so that a vacuum space is formed inside a battery top cover placed in a positioning seat in the positioning jig.
Further, a gas injection hole for helium is formed in the inner ring of the sealing ring and in the positioning seat on the positioning jig.
Further, the suction head supporting plate is provided with a detection hole connected with an external helium detector.
Further, go up top evacuating mechanism still includes and goes up top guide post, it has two to go up a guide post to set up on the lower plate, two go up a guide post and be located top cylinder both sides respectively, and the upper end runs through the horizontal plate, and connects the suction head backup pad.
Further, the piston rod of the plugging liquid Kong Qigang is in an extended state in an initial state.
The beneficial effects of the invention are as follows:
the invention provides a vacuum helium detection mechanism for detecting tightness of a battery top cover, which has a simple and novel structure, and can enable a lower pressing die to move downwards through the extension of a piston rod of a lower pressing cylinder, then the extension of the piston rod of a lower pressing limiting cylinder, the pushing of the piston rod of the lower pressing limiting cylinder is supported against two ends of a lower pressing limiting plate, the piston rod of the lower pressing cylinder is limited to extend further, then the piston rod of a plugging liquid Kong Qigang is retracted, so that the lower pressing die is laterally moved, an elastic pressing block on the lower pressing die is enabled to plug a side liquid injection hole of the battery top cover placed in a positioning seat in a positioning jig, then the piston rod of the lower pressing cylinder is retracted, the piston rod of the lower pressing cylinder is enabled to extend further, the lower edge of the battery top cover is enabled to be in tight contact with a sealing ring, then the piston rod of an upper pressing cylinder is extended, the suction head is driven by a suction head supporting plate and inserted into a suction hole, the inner part of the battery top cover placed in the positioning seat is enabled to form a vacuum space, helium gas sprayed into the inner space of the battery top cover by the air injection hole, and finally helium gas sprayed into the inner space of the battery top cover is detected by an external detecting instrument through a detecting hole to detect whether the helium gas leaks in the positioning top cover, and if the battery top cover is detected to be poor in tightness, otherwise, the tightness is good.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic structural view of the pressing-down blocking liquid injection mechanism.
Fig. 3 is a schematic view of the structure on the lower end face of the lower platen.
Fig. 4 is a schematic diagram of the structure of the top-up vacuum pumping mechanism.
Fig. 5 is a schematic diagram of a positioning jig.
Fig. 6 is a schematic view of a positioning fixture with a battery top cover.
In the figure: 1. the device comprises an upper top plate, 2, a lower bottom plate, 3, a pressing-down blocking injection mechanism, 301, a pressing-down cylinder, 302, a pressing-down plate, 303, a pressing-down die, 304, blocking injection Kong Qigang, 305, a pressing-down limiting plate, 306, a pressing-down guide column, 307, a pressing-down limiting cylinder, 308, an elastic pressing block, 4, an upper top vacuumizing mechanism, 401, an upper top cylinder, 402, a horizontal plate, 403, a suction head, 404, a suction head supporting plate, 405, a supporting column, 406, an upper top guide column, 5, a positioning jig, 501, a bottom die, 502, a positioning seat, 503, a sealing ring, 504, an air suction hole, 6, a stand column, 7, a support, 8, a battery top cover, 9, an air injection hole, 10, a detection hole, 11 and an injection hole.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-2, the invention provides a vacuum helium detection mechanism for detecting the tightness of a battery top cover, which comprises an upper top plate 1, a lower bottom plate 2, a pressing-down plugging liquid injection mechanism 3, an upper top vacuumizing mechanism 4 and a positioning jig 5, wherein the upper top plate 1 and the lower bottom plate 2 are supported by a stand column 6;
the pressing blocking and liquid injecting mechanism 3 comprises two pressing cylinders 301, two pressing plates 302, a pressing die 303, blocking and liquid injecting Kong Qigang, pressing limiting plates 305, pressing guide posts 306 and pressing limiting cylinders 307, wherein the two pressing cylinders 301 are symmetrically arranged on the upper top plate 1, piston rods of the pressing cylinders 301 penetrate through the upper top plate 1 and are connected with the pressing plates 302 arranged below the upper top plate 1, the two pressing guide posts 306 penetrate through the upper top plate 1, the lower ends of the two pressing guide posts 306 are connected with the pressing plates 302, the upper ends of the two pressing guide posts 306 are jointly connected with the pressing limiting plates 305, the pressing limiting cylinders 307 are arranged on the upper top plate 1, piston rods of the two pressing limiting cylinders 307 are respectively pointed at two ends of the pressing limiting plates 305, the blocking and liquid injecting Kong Qigang is arranged on the lower end face of the pressing plates 302, the piston rods of the blocking and liquid injecting Kong Qigang are connected with the pressing dies 303, the pressing films 303 are connected with the lower end faces of the pressing plates 302 in a sliding mode, and the pressing faces of the pressing plates 302 are provided with elastic pressing blocks 308;
the upper top vacuumizing mechanism 4 comprises an upper top air cylinder 401, a horizontal plate 402, a suction head 403 and suction head support plates 404, wherein the upper top air cylinder 401 is arranged on the lower bottom plate 2, the horizontal plate 402 is arranged on the lower bottom plate 2 through support columns 405, a piston rod of the upper top air cylinder 401 penetrates through the horizontal plate 402 and is connected with the suction head support plates 404, the suction head 403 is arranged in the middle of the upper end face of the suction head support plates 404, the upper top vacuumizing mechanism 4 further comprises two upper top guide posts 406, the two upper top guide posts 406 are arranged on the lower bottom plate 2, the two upper top guide posts 406 are respectively positioned on two sides of the upper top air cylinder 401, and the upper ends of the two upper top guide posts penetrate through the horizontal plate 402 and are connected with the suction head support plates 404;
the positioning jig 5 is arranged on the horizontal plate 402 through the support 7 and comprises a bottom die 501, a positioning seat 502 and a sealing ring 503, the bottom die 501 is arranged on the support 7, the positioning seat 502 is arranged on the bottom die 501, the sealing ring 503 in contact with the battery top cover 8 is arranged in the positioning seat 502, and an air exhaust hole 504 which is matched with the suction head 403 and vertically penetrates through the bottom die 501 and the support 7 is arranged in the middle of the positioning seat 501.
When the piston rod of the pressing limiting cylinder 307 is in an extended state, the two ends of the pressing limiting plate 305 are propped against, and the piston rod of the pressing cylinder 301 is limited to extend further.
When the piston rod of the upper jacking cylinder 401 is in an extending state, the suction head 403 is driven by the suction head supporting plate 404 to be inserted into the suction hole 504, and the suction head 403 is connected with an external vacuum pump, so that a vacuum space is formed inside the battery top cover 8 placed in the positioning seat 502 in the positioning jig 5.
And a gas injection hole 9 for helium gas is arranged in the positioning seat 502 on the positioning jig 5 and positioned in the inner ring of the sealing ring 503.
The suction head support plate 404 is provided with a detection hole 10 connected with an external helium detector.
The piston rod of the plugging liquid Kong Qigang is in an initial state of extending.
The working process comprises the following steps: the piston rod of the lower pressing cylinder 301 is extended to enable the lower pressing die 303 to move downwards, then the piston rod of the lower pressing limiting cylinder 307 is extended to prop against two ends of the lower pressing limiting plate 305, the piston rod of the lower pressing cylinder 301 is limited to extend further, then the piston rod of the plugging liquid Kong Qigang is retracted to enable the lower pressing die 303 to move laterally, so that the elastic pressing block 308 on the lower pressing die 303 plugs the liquid injecting hole 11 at the side of the battery top cover 8 placed in the locating seat 502 in the locating jig 5, then the piston rod of the lower pressing limiting cylinder 307 is retracted, the piston rod of the lower pressing cylinder 301 is extended further to enable the lower edge of the battery top cover 8 to be tightly contacted with the sealing ring 503, then the piston rod of the upper pressing cylinder 401 is extended, the suction head 403 is driven by the suction head supporting plate 404 to be inserted into the air extracting hole 5004, the suction head 403 is connected with an external vacuum pump, helium gas in the air injecting hole 9 is distributed in the inner space of the battery top cover 8, and finally the helium gas in the air injecting hole 9 is detected by the external detecting instrument to detect whether the battery top cover 8 leaks through the external detecting instrument 10, if the leak of the helium gas is detected by the detecting instrument, and if the leak of the helium gas in the battery top cover 8 is detected is good, otherwise, the leak is detected, and the leak is detected by detecting the helium gas is detected by detecting the battery top 8.
The embodiments of the invention described above are not intended to limit the scope of the invention, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the following claims.
Claims (5)
1. The vacuum helium detection mechanism for detecting the tightness of the battery top cover is characterized by comprising an upper top plate, a lower bottom plate, a downward pressing blocking and liquid injecting mechanism, an upper top vacuumizing mechanism and a positioning jig, wherein the upper top plate and the lower bottom plate are supported by upright posts;
the pressing blocking liquid injection mechanism comprises two pressing cylinders, two pressing plates, pressing dies, blocking liquid injection hole cylinders, pressing limiting plates, pressing guide columns and pressing limiting cylinders, wherein the two pressing cylinders are symmetrically arranged on an upper top plate, piston rods of the pressing cylinders penetrate through the upper top plate and are connected with the pressing plates arranged below the upper top plate, the two pressing guide columns penetrate through the upper top plate, the lower ends of the two pressing guide columns are connected with the pressing plates, the upper ends of the two pressing guide columns are connected with the pressing limiting plates together, the two pressing limiting cylinders are arranged on the upper top plate, the piston rods of the two pressing limiting cylinders are respectively directed to the two ends of the pressing limiting plates, blocking liquid Kong Qigang is arranged on the lower end face of the pressing plates, the piston rods of the blocking liquid injection Kong Qigang are connected with the pressing dies, the pressing dies are in sliding connection with the lower end faces of the pressing plates, and the lower end faces of the pressing dies are provided with elastic pressing blocks;
the upper jacking vacuum pumping mechanism comprises an upper jacking cylinder, a horizontal plate, a suction head and a suction head supporting plate, wherein the upper jacking cylinder is arranged on the lower bottom plate, the horizontal plate is arranged on the lower bottom plate through a supporting column, a piston rod of the upper jacking cylinder penetrates through the horizontal plate and is connected with the suction head supporting plate, and the suction head is arranged in the middle of the upper end face of the suction head supporting plate;
the positioning jig is arranged on the horizontal plate through a support and comprises a bottom die, a positioning seat and a sealing ring, wherein the bottom die is arranged on the support;
when the piston rod of the downward-pressing limiting cylinder is in an extending state, the two ends of the downward-pressing limiting plate are propped against, and the piston rod of the downward-pressing cylinder is limited to extend further;
when the piston rod of the jacking cylinder is in an extending state, the suction head is driven by the suction head supporting plate to be inserted into the air suction hole, and the suction head is connected with an external vacuum pump, so that a vacuum space is formed inside a battery top cover placed in a positioning seat in the positioning jig.
2. The vacuum helium testing mechanism for testing tightness of a battery top cover according to claim 1, wherein a gas injection hole for helium gas is arranged in a positioning seat on the positioning jig and in an inner ring of the sealing ring.
3. The vacuum helium testing mechanism for testing tightness of a battery top cover according to claim 1, wherein a testing hole connected with an external helium tester is formed in the suction head supporting plate.
4. The vacuum helium testing mechanism for detecting tightness of a battery top cover according to claim 1, wherein the upper top vacuumizing mechanism further comprises two upper top guide posts, the two upper top guide posts are arranged on the lower bottom plate, the two upper top guide posts are respectively positioned on two sides of the upper top cylinder, and the upper ends of the two upper top guide posts penetrate through the horizontal plate and are connected with the suction head supporting plate.
5. The vacuum helium testing mechanism for testing tightness of a battery top cover according to claim 1, wherein an initial state of a piston rod of said plugging liquid Kong Qigang is an extended state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711461001.6A CN107894307B (en) | 2017-12-28 | 2017-12-28 | Vacuum helium detection mechanism for detecting tightness of battery top cover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711461001.6A CN107894307B (en) | 2017-12-28 | 2017-12-28 | Vacuum helium detection mechanism for detecting tightness of battery top cover |
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| Publication Number | Publication Date |
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| CN107894307A CN107894307A (en) | 2018-04-10 |
| CN107894307B true CN107894307B (en) | 2023-06-16 |
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| CN201711461001.6A Active CN107894307B (en) | 2017-12-28 | 2017-12-28 | Vacuum helium detection mechanism for detecting tightness of battery top cover |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414157B (en) * | 2018-05-10 | 2023-12-05 | 安徽智森电子科技有限公司 | Vacuum helium detection equipment for detecting product air tightness |
| CN108692888B (en) * | 2018-06-05 | 2019-11-19 | 广舜检测技术（上海）有限公司 | A kind of method for conducting leak test of battery liquid-filling mouth enclosuring structure |
| CN110031154B (en) * | 2019-05-15 | 2024-04-19 | 宿州文良机械有限公司 | Automatic control piston air tightness detection gauge |
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| JPH11307136A (en) * | 1998-04-27 | 1999-11-05 | Furukawa Battery Co Ltd:The | Air tightness testing device for sealed storage battery |
| CN204115999U (en) * | 2014-10-31 | 2015-01-21 | 烟台杰瑞工矿部件有限公司 | A kind of engine cylinder cap air valve leak-testing apparatus |
| CN104535339A (en) * | 2015-01-22 | 2015-04-22 | 杭州沃镭智能科技股份有限公司 | Vacuum booster assembly performance online detection device |
| CN105327863A (en) * | 2015-11-17 | 2016-02-17 | 深圳市誉辰自动化设备有限公司 | Automatic air impermeability helium detector for square power batteries |
| CN205538100U (en) * | 2016-04-08 | 2016-08-31 | 宁德时代新能源科技股份有限公司 | Battery top cap helium leak test anchor clamps |
| CN105953985A (en) * | 2016-06-16 | 2016-09-21 | 安徽皖仪科技股份有限公司 | Lithium battery electrode cover plate helium mass spectrum leak detection method |
| CN205904616U (en) * | 2016-06-23 | 2017-01-25 | 深圳市联赢激光股份有限公司 | Battery positioning and clamping device |
| CN106885656A (en) * | 2017-03-04 | 2017-06-23 | 广州灵帕机电科技有限公司 | A kind of cover plate of power battery helium leak test system |
| CN107091716A (en) * | 2017-04-13 | 2017-08-25 | 深圳市卓誉自动化科技有限公司 | A kind of vacuum helium checking device and method for being used to detect battery sealing-performance |
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2017
- 2017-12-28 CN CN201711461001.6A patent/CN107894307B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11307136A (en) * | 1998-04-27 | 1999-11-05 | Furukawa Battery Co Ltd:The | Air tightness testing device for sealed storage battery |
| CN204115999U (en) * | 2014-10-31 | 2015-01-21 | 烟台杰瑞工矿部件有限公司 | A kind of engine cylinder cap air valve leak-testing apparatus |
| CN104535339A (en) * | 2015-01-22 | 2015-04-22 | 杭州沃镭智能科技股份有限公司 | Vacuum booster assembly performance online detection device |
| CN105327863A (en) * | 2015-11-17 | 2016-02-17 | 深圳市誉辰自动化设备有限公司 | Automatic air impermeability helium detector for square power batteries |
| CN205538100U (en) * | 2016-04-08 | 2016-08-31 | 宁德时代新能源科技股份有限公司 | Battery top cap helium leak test anchor clamps |
| CN105953985A (en) * | 2016-06-16 | 2016-09-21 | 安徽皖仪科技股份有限公司 | Lithium battery electrode cover plate helium mass spectrum leak detection method |
| CN205904616U (en) * | 2016-06-23 | 2017-01-25 | 深圳市联赢激光股份有限公司 | Battery positioning and clamping device |
| CN106885656A (en) * | 2017-03-04 | 2017-06-23 | 广州灵帕机电科技有限公司 | A kind of cover plate of power battery helium leak test system |
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