CN110600761A - Processing device and processing method for fuel cell metal bipolar plate with high depth-to-width ratio - Google Patents
Processing device and processing method for fuel cell metal bipolar plate with high depth-to-width ratio Download PDFInfo
- Publication number
- CN110600761A CN110600761A CN201910981345.2A CN201910981345A CN110600761A CN 110600761 A CN110600761 A CN 110600761A CN 201910981345 A CN201910981345 A CN 201910981345A CN 110600761 A CN110600761 A CN 110600761A
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- metal sheet
- template
- guide pillar
- pressing
- lower template
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- 239000002184 metal Substances 0.000 title claims abstract description 98
- 239000000446 fuel Substances 0.000 title claims abstract description 23
- 238000003672 processing method Methods 0.000 title claims description 8
- 238000003825 pressing Methods 0.000 claims abstract description 57
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 19
- 230000000903 blocking effect Effects 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 230000004044 response Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
- H01M8/026—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
-
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
A processing device and a method for a fuel cell metal bipolar plate with a high depth-to-width ratio comprise a lower template, an upper template, a metal sheet mounting block, a plurality of pressing blocks, a limiting plate and a guide pillar; the upper surface of the lower template is concavely provided with a plurality of forming grooves, and one side of the lower template is provided with at least two first guide post holes; a plurality of through grooves are formed in the upper template in a penetrating mode at positions corresponding to the forming grooves, a second guide pillar hole is formed in one side of the upper template corresponding to the first guide pillar hole, and the guide pillars are located in the second guide pillar hole and the first guide pillar hole; the upper surface of the metal sheet mounting block is provided with at least two limiting columns in a protruding mode, and the metal sheet mounting block is located on the outer side of one end of the lower template; the pressing block is positioned in the through groove and movably extends into the forming groove; the middle part of the pressing block is provided with a middle opening; the limiting plate movably passes through the middle openings of the pressing blocks. Therefore, the runner structure with higher depth-to-width ratio can be processed, and the consistency is good.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a processing device and a processing method of a fuel battery metal bipolar plate with a high depth-to-width ratio.
Background
The metal bipolar plate of the fuel cell needs to be processed into a flow channel structure with a concave-convex shape, the existing stamping module is difficult to manufacture a stainless steel bipolar plate flow channel structure with the depth of more than 0.5mm and the depth-to-width ratio of more than 1, because the metal bipolar plate is easy to deform or break when the traditional processing device processes the flow channel structure with the higher depth-to-width ratio, and the consistency of the flow channel structure of the metal bipolar plate is difficult to ensure.
Disclosure of Invention
In view of the above, the present invention provides a processing apparatus and a processing method thereof for processing a fuel cell metal bipolar plate having a higher aspect ratio flow channel structure and a higher consistent aspect ratio, so as to solve the above problems.
A processing device of a fuel cell metal bipolar plate with a high depth-to-width ratio comprises a lower template, an upper template, a metal sheet mounting block, a plurality of pressing blocks, a limiting plate and a guide pillar; the upper surface of the lower template is concavely provided with a plurality of forming grooves, the upper surface of the lower template is provided with at least two first guide pillar holes at the outer sides of the forming grooves, and the bottoms of the guide pillars are embedded in the first guide pillar holes; a plurality of through grooves are formed in the upper template in a penetrating mode at positions corresponding to the forming grooves, second guide pillar holes are formed in the upper template corresponding to the first guide pillar holes, and the tops of the guide pillars are located in the second guide pillar holes of the upper template; the upper surface of the metal sheet mounting block is provided with at least two mounting holes, limiting columns are embedded in the mounting holes, and the tops of the limiting columns protrude out of the mounting holes; the metal sheet mounting block is positioned on the outer side of one end of the lower template; the pressing block is positioned in the through groove and movably extends into the forming groove; the middle part of the pressing block is provided with a middle opening; the limiting plate movably passes through the middle openings of the pressing blocks.
Furthermore, the upper template is provided with a material blocking groove at one side of the through groove, and a material blocking block is arranged in the material blocking groove.
Furthermore, a limiting notch is formed in one end, facing the metal sheet mounting block, of the lower template, and the metal sheet mounting block is located in the limiting notch of the lower template.
A processing method of a fuel cell metal bipolar plate with high depth-to-width ratio comprises the following steps: step S1: fixing a first end of a metal sheet; step S2: pushing a metal sheet into a gap between an upper template and a lower template, wherein the upper surface of the lower template is concavely provided with a plurality of forming grooves, a plurality of through grooves are formed in the upper template corresponding to the forming grooves in a penetrating manner, and a material blocking groove is formed in one side of each through groove; step S3: inserting a material blocking block into the material blocking groove and on the metal sheet; step S4: inserting a plurality of pressing blocks into the through grooves respectively and contacting with the metal sheet, wherein the middle part of each pressing block is provided with a middle opening; step S5: the pressing blocks sequentially move downwards from the first end close to the metal sheet to the first end far away from the metal sheet and extend into the forming groove, and in the process, the movable end of the metal sheet continuously enters a gap between the upper template and the lower template; step S6: when one pressing block extends into the forming groove, the limiting plate moves for a certain distance towards the direction away from the first end of the metal sheet and penetrates through the opening in the middle of the pressing block, so that the formed part of the metal sheet is prevented from deforming along with the pressing; step S7: the limiting plate drives all the pressing plates to move upwards for a certain distance, so that the lower ends of the pressing plates enter the upper template, new metal sheets are replaced, the limiting plate is drawn out, and the steps are repeated.
Compared with the prior art, the processing device of the fuel cell metal bipolar plate with the high aspect ratio comprises a lower template, an upper template, a metal sheet mounting block, a plurality of pressing blocks, a limiting plate and a guide pillar; the upper surface of the lower template is concavely provided with a plurality of forming grooves, the upper surface of the lower template is provided with at least two first guide pillar holes at the outer sides of the forming grooves, and the bottoms of the guide pillars are embedded in the first guide pillar holes; a plurality of through grooves are formed in the upper template in a penetrating mode at positions corresponding to the forming grooves, second guide pillar holes are formed in the upper template corresponding to the first guide pillar holes, and the tops of the guide pillars are located in the second guide pillar holes of the upper template; the upper surface of the metal sheet mounting block is provided with at least two mounting holes, limiting columns are embedded in the mounting holes, and the tops of the limiting columns protrude out of the mounting holes; the metal sheet mounting block is positioned on the outer side of one end of the lower template; the pressing block is positioned in the through groove and movably extends into the forming groove; the middle part of the pressing block is provided with a middle opening; the limiting plate movably passes through the middle openings of the pressing blocks. Therefore, the runner structure with higher depth-to-width ratio can be processed, and the consistency is good. The invention also provides a processing method of the fuel cell metal bipolar plate with high depth-to-width ratio.
Drawings
Embodiments of the invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a schematic perspective view of a fuel cell metal bipolar plate processed by the processing device of a fuel cell metal bipolar plate with a high aspect ratio provided by the present invention.
Fig. 2 is an exploded view of a processing apparatus for a metal bipolar plate of a fuel cell with a high aspect ratio according to the present invention.
Fig. 3 is a schematic view of a first state of the processing device for a metal bipolar plate of a fuel cell with a high aspect ratio according to the present invention.
Fig. 4 is a schematic diagram of a second state of the processing device for the metal bipolar plate of the fuel cell with high aspect ratio according to the present invention.
Fig. 5 is an enlarged schematic view of a portion a in fig. 4.
Detailed Description
Specific embodiments of the present invention will be described in further detail below based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
Referring to fig. 2 and 5, the apparatus for processing a metal bipolar plate of a fuel cell with a high aspect ratio according to the present invention includes a lower mold plate 10, an upper mold plate 20, a metal sheet mounting block 30, a plurality of pressing blocks 40, a limiting plate 50, a material blocking block 60, and a guide pillar 70.
The upper surface of lower bolster 10 is sunken to be provided with a plurality of shaping grooves 11, and spacing breach 13 has been seted up to the one end of lower bolster 10, and at least two first guide post holes 12 have been seted up to one side of lower bolster 10. The bottom of the guide post 70 is embedded in the first guide post hole 12.
A plurality of through grooves 21 are formed on the upper die plate 20 at positions corresponding to the plurality of forming grooves 11, and a second guide pillar hole 22 is formed on one side of the upper die plate 20 corresponding to the first guide pillar hole 12. When the upper plate 20 is placed on the lower plate 10, the tops of the guide posts 70 are located in the second guide post holes 22.
The upper die plate 20 is provided with a material blocking groove 24 at one side of the through groove 21. The dam block 60 is movably positioned in the dam tank 24.
The upper surface of sheetmetal installation piece 30 has seted up the mounting hole, and the mounting hole inlays and is equipped with spacing post 31, and the top salient in mounting hole of spacing post 31.
The pressing block 40 is positioned in the through groove 21 and movably extends into the forming groove 11. The middle part of the pressing block 40 is provided with a middle opening 41.
The position limiting plate 50 movably passes through the middle openings 41 of the plurality of pressing blocks 40.
Referring to fig. 3 and 4, in use, a through hole 120 is drilled at one end of a metal sheet 101, such as a stainless steel sheet, and the limiting post 31 of the metal sheet mounting block 30 passes through the through hole of the metal sheet 101, so that one end of the metal sheet 101 is fixed relative to the lower mold plate 10. Pushing the metal sheet mounting block 30 into the position of the limiting notch 13 of the lower template 10; the upper platen 20 is moved upward a distance relative to the lower platen 10 such that a gap is formed between the upper platen 20 and the lower platen 10, and the metal sheet 101 is pushed into the gap between the upper platen 20 and the lower platen 10. As indicated by arrow a in fig. 3.
The blocker block 60 is then inserted into the blocker slot 24 and positioned over the metal sheet 101. The stop block 60 is a flexible material that functions to secure the metal sheet 101 and prevent the metal sheet 101 from being crushed. When the pressing block 40 is pressed for the first time, the material blocking block 60 plays a certain material blocking role, and the metal sheet can flow into the lower template 10 from the movable end conveniently.
The pressing blocks 40 are inserted into the through grooves 21, respectively, and are in contact with the metal sheet 101.
The pressing blocks 40 sequentially move downwards under the action of manual or external downward pressing driving units according to the sequence from the fixed end close to the metal sheet to the fixed end far away from the metal sheet, and drive the metal sheet 101 to extend into the forming groove 11 together, so that the metal sheet 101 is pressed into a concave-convex flow channel structure.
After each pressing block 40 extends into the forming groove 11, the limiting plate 50 moves forward a distance in a direction away from the fixed end of the metal sheet and penetrates through the middle opening 41 of the pressing block 40 to fix the pressed pressing block 40, so as to prevent the part of the metal sheet 101 pressed into the runner structure by the subsequent pressing block 40 from tilting upward during pressing, and drive the pressing block 40 extending into the forming groove 11 to move upward, so that the part of the metal sheet 101 which is formed before is deformed. The moving direction of the stopper plate 50 is shown by an arrow b in fig. 3.
In the process, as the metal sheet 101 deforms in response to the forming groove 11, the portion of the metal sheet 101 away from the metal sheet mounting block 30 contracts toward the stopper column 31 and enters the gap between the upper die plate 20 and the lower die plate 10.
Referring to fig. 1, after the metal sheet 101 is formed by the processing device of the fuel cell metal bipolar plate with a high aspect ratio of the present invention, a flow channel structure 110 with a concave-convex shape is formed in the middle. The metal sheet 101 is also punched with air holes 130 at both ends by other punching means.
The processing method of the fuel cell metal bipolar plate with high depth-to-width ratio comprises the following steps: step S1: fixing a first end of a metal sheet; step S2: moving the upper template upwards for a certain distance relative to the lower template to form a gap between the upper template and the lower template, and pushing the metal sheet into the gap between the upper template and the lower template; step S3: inserting a material blocking block into the material blocking groove and on the metal sheet; step S4: inserting the pressing blocks into the through grooves respectively and contacting with the metal sheets; step S5: the pressing blocks move downwards in sequence from the fixed end close to the metal sheet to the fixed end far away from the metal sheet and extend into the forming groove, and the movable end of the metal sheet continuously enters a gap between the upper template and the lower template in the process; step S6: when one pressing block extends into the forming groove, the limiting plate moves for a certain distance towards the direction away from the fixed end of the metal sheet and penetrates through the middle opening of the pressing block, so that the formed part of the metal sheet is prevented from deforming along with the pressing; step S7: after the steps are completed, the limiting plates drive all the pressing plates to move upwards for a certain distance, the lower ends of the pressing plates enter the upper template, then new metal sheets are replaced, the limiting plates are drawn out, and the steps are repeated.
Compared with the prior art, the processing device of the fuel cell metal bipolar plate with the high aspect ratio comprises a lower template 10, an upper template 20, a metal sheet mounting block 30, a plurality of pressing blocks 40, a limiting plate 50 and a guide pillar 70; the upper surface of the lower template 10 is concavely provided with a plurality of forming grooves 11, and one side of the lower template 10 is provided with at least two first guide pillar holes 12; a plurality of through grooves 21 are formed in the upper template 20 in a penetrating manner at positions corresponding to the plurality of forming grooves 11, a second guide pillar hole 22 is formed in one side of the upper template 20 corresponding to the first guide pillar hole 12, and the guide pillar 70 is positioned in the second guide pillar hole 22 and the first guide pillar hole 12; the upper surface of the metal sheet mounting block 30 is provided with at least two limiting columns 31 in a protruding manner, and the metal sheet mounting block 30 is positioned on the outer side of one end of the lower template 10; the pressing block 40 is positioned in the through groove 21 and movably extends into the forming groove 11; the middle part of the pressing block 40 is provided with a middle opening 41; the position limiting plate 50 movably passes through the middle openings 41 of the plurality of pressing blocks 40. Therefore, the runner structure with a higher depth-to-width ratio can be processed, and the consistency is better.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.
Claims (4)
1. A processing device of a fuel cell metal bipolar plate with high depth-to-width ratio is characterized in that: the device comprises a lower template, an upper template, a metal sheet mounting block, a plurality of pressing blocks, a limiting plate and a guide pillar; the upper surface of the lower template is concavely provided with a plurality of forming grooves, the upper surface of the lower template is provided with at least two first guide pillar holes at the outer sides of the forming grooves, and the bottoms of the guide pillars are embedded in the first guide pillar holes; a plurality of through grooves are formed in the upper template in a penetrating mode at positions corresponding to the forming grooves, second guide pillar holes are formed in the upper template corresponding to the first guide pillar holes, and the tops of the guide pillars are located in the second guide pillar holes of the upper template; the upper surface of the metal sheet mounting block is provided with at least two mounting holes, limiting columns are embedded in the mounting holes, and the tops of the limiting columns protrude out of the mounting holes; the metal sheet mounting block is positioned on the outer side of one end of the lower template; the pressing block is positioned in the through groove and movably extends into the forming groove; the middle part of the pressing block is provided with a middle opening; the limiting plate movably passes through the middle openings of the pressing blocks.
2. The apparatus for processing a high aspect ratio metal bipolar plate for a fuel cell of claim 1, wherein: the upper die plate is provided with a material blocking groove at one side of the through groove, and a material blocking block is arranged in the material blocking groove.
3. The apparatus for processing a high aspect ratio metal bipolar plate for a fuel cell of claim 1, wherein: and one end of the lower template, which faces the metal sheet mounting block, is provided with a limiting notch, and the metal sheet mounting block is positioned in the limiting notch of the lower template.
4. A processing method of a fuel cell metal bipolar plate with high depth-to-width ratio is characterized in that: the method comprises the following steps:
step S1: fixing a first end of a metal sheet;
step S2: pushing a metal sheet into a gap between an upper template and a lower template, wherein the upper surface of the lower template is concavely provided with a plurality of forming grooves, a plurality of through grooves are formed in the upper template corresponding to the forming grooves in a penetrating manner, and a material blocking groove is formed in one side of each through groove;
step S3: inserting a material blocking block into the material blocking groove and on the metal sheet;
step S4: inserting a plurality of pressing blocks into the through grooves respectively and contacting with the metal sheet, wherein the middle part of each pressing block is provided with a middle opening;
step S5: the pressing blocks sequentially move downwards from the first end close to the metal sheet to the first end far away from the metal sheet and extend into the forming groove, and in the process, the movable end far away from the first end of the metal sheet continuously enters a gap between the upper template and the lower template;
step S6: when one pressing block extends into the forming groove, the limiting plate moves for a certain distance towards the direction away from the first end of the metal sheet and penetrates through the opening in the middle of the pressing block, so that the formed part of the metal sheet is prevented from deforming along with the pressing;
step S7: the limiting plate drives all the pressing plates to move upwards for a certain distance, so that the lower ends of the pressing plates enter the upper template, new metal sheets are replaced, the limiting plate is drawn out, and the steps are repeated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910981345.2A CN110600761B (en) | 2019-10-16 | 2019-10-16 | Processing device and processing method for fuel cell metal bipolar plate with high aspect ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910981345.2A CN110600761B (en) | 2019-10-16 | 2019-10-16 | Processing device and processing method for fuel cell metal bipolar plate with high aspect ratio |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110600761A true CN110600761A (en) | 2019-12-20 |
| CN110600761B CN110600761B (en) | 2024-04-26 |
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| CN201910981345.2A Active CN110600761B (en) | 2019-10-16 | 2019-10-16 | Processing device and processing method for fuel cell metal bipolar plate with high aspect ratio |
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