CN110252891B - Plate material grading device for multi-step punching metal polar plate - Google Patents
Plate material grading device for multi-step punching metal polar plate Download PDFInfo
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- CN110252891B CN110252891B CN201910522191.0A CN201910522191A CN110252891B CN 110252891 B CN110252891 B CN 110252891B CN 201910522191 A CN201910522191 A CN 201910522191A CN 110252891 B CN110252891 B CN 110252891B
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- 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
- B21D37/08—Dies with different parts for several steps in a process
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- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/12—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by chains or belts
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention provides a plate material progressive device for multi-step stamping of metal polar plates, which comprises an integrated die set with a platform, wherein two conveyor belts are opposite to each other and separately arranged on the platform in parallel, and at least one multi-step die pressing forming unit is fixedly arranged between the two conveyor belts and is vertical to the transmission direction of the conveyor belts; two ends of the metal pole plate respectively vertically fall on the front surfaces of the two conveyor belts, move horizontally along with the conveyor belts, horizontally convey above the multi-step die forming units between the two conveyor belts, and receive stamping forming on each multi-step die forming unit. According to the technical scheme, the metal pole plate is horizontally moved, so that the problem that in the prior art, when the metal pole plate is moved in a manner of winding and unwinding a coil material belt, the metal pole plate is pulled and deformed, so that a die and a plate material are staggered during stamping, and the forming precision of the metal pole plate is influenced is solved; the shape and the positioning accuracy of the metal pole plate are ensured during the stamping operation.
Description
Technical Field
The invention relates to the field of fuel cell production, in particular to a plate material grading device for multi-step stamping of a metal polar plate.
Background
A fuel cell, which is mainly a Proton Exchange Membrane Fuel Cell (PEMFC), is developed, and uses hydrogen-rich gas such as natural gas as fuel, and is a device for directly converting chemical energy of the fuel into electric energy. The electrochemical reaction is usually directly carried out on the hydrogen and the oxygen to output electric energy, and the product of the reaction is water, so that zero emission is basically realized.
The fuel cell has simple structure, and the core components are the membrane electrode and the fuel cell polar plate for bearing hydrogen and oxygen. The membrane electrode is composed of a proton-conductive membrane and electrodes (cathode and anode) disposed on both sides of the membrane, respectively. The fuel cell plate has the functions of providing a gas flow channel, preventing the hydrogen and the oxygen in the cell gas chamber from communicating with each other, and establishing a current path between the cathode and the anode which are connected in series. Among them, the metal plate is more interesting because of its small size and light weight.
The metal plates for fuel cells should be as thin as possible while maintaining a certain mechanical strength and good gas barrier effect to reduce the conductive resistance to current and heat. The metal plate is usually required to be provided with a plurality of flow channels, some of which are used for the reaction gas to flow through, and the other of which are used for the cooling liquid to flow through so as to cool the metal plate. In the prior art, the flow passages are generally prepared by a stamping method. But the method is limited by the effect of single-pass stamping forming, and the depth of the flow channel on the prepared metal polar plate is usually shallow, so that the hydrogen and oxygen are not favorably distributed and flow in the flow channel. Therefore, at present, the metal plate is prepared by adopting a multi-pass multi-step stamping forming method to obtain a deeper runner, namely a metal plate with a high-depth ratio structure, wherein the depth of the runner is close to the width of a runner groove.
When a metal pole plate is prepared, progressive flow of the metal pole plate among multiple stations in a die is needed, sheet upgrading is mainly realized in a manner of winding and unwinding a coil material belt at present, however, because the metal pole plate for a fuel cell is ultrathin in thickness, for example, a ultrathin sheet metal pole plate with the thickness of 0.1mm is adopted, when the metal pole plate is moved in a winding and unwinding manner, the precision is low, because the metal pole plate is very easy to pull and deform in the winding and unwinding process, the ultrathin sheet metal cannot be accurately conveyed to relevant stations, and thus, when multi-step stamping is carried out, the forming precision of the multi-step stamping is influenced due to dislocation of a die and the sheet metal. Namely, the traditional plate material progressive process can not meet the requirements of high-efficiency and high-precision progressive flow required by a metal polar plate for a fuel cell.
Accordingly, there is a need for improvements and developments in the art.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, it is an object of the present invention to provide a sheet metal progressive apparatus for multi-step stamping of metal plates.
The technical scheme of the invention is as follows:
the invention provides a plate material grading device for a multi-step stamping metal polar plate, which comprises an integrated die carrier with a platform, wherein two conveyor belts are opposite to each other and separately arranged on the platform in parallel, and at least one multi-step die pressing forming unit is fixedly arranged between the two conveyor belts in a direction perpendicular to the transmission direction of the conveyor belts; the two ends of the metal polar plate respectively vertically fall on the front surfaces of the two conveyor belts and move horizontally along with the conveyor belts.
Preferably, the platform is provided with a die pressing positioning unit facing the conveyor belt, and the die pressing positioning unit is matched with the pole plate positioning device on the conveyor belt and used for positioning the metal pole plate to move to a position right above the multi-step die pressing forming unit.
More preferably, the molding positioning units are disposed at both ends of the multi-step molding unit.
More preferably, the electrode plate positioning device is fixed on the front surface of the conveyor belt and comprises a positioning pin back to the conveyor belt, and the positioning pin is used for fixing two ends of the metal electrode plate.
Further preferably, the mould pressing positioning unit comprises a laser head and a laser receiver facing the conveyor belt, and the polar plate positioning device comprises a laser reflection sheet facing the platform, and the laser reflection sheet is visible through the conveyor belt.
Still further preferably, the conveyor belt is a hollow structure, and the laser reflection sheet faces the hollow part on the conveyor belt.
Or even more preferably, each conveyor belt comprises two opposite and separated parallel sub-belts, and the laser reflector is opposite to a gap between the two sub-belts.
Further preferably, the mould pressing positioning unit and the polar plate positioning device are respectively provided with a transmitter and a receiver, and the polar plate positioning device is fixed on the hollow structure of the conveyor belt.
Preferably, the multi-step die forming unit comprises at least one raised inner guide post of the stamping die, the conveyor belt can be lifted, and the highest lifting point of the conveyor belt is not lower than the top point of the inner guide post of the stamping die.
More preferably, the platform is separately provided with at least four rotating wheels, two ends of each conveyor belt are wound on one rotating wheel respectively, and the rotating wheels are used for driving the conveyor belts to transmit.
Further preferably, the rotating wheel is arranged on a piston of an air cylinder, and the rotating wheel can be lifted under the driving of the air cylinder to drive the conveying belt to lift.
Preferably, the rotating wheel is driven to rotate in steps by a stepping motor.
Preferably, the downstream of the conveyor belt is closely attached to a discharge conveyor belt, and the metal polar plate is translated from the conveyor belt to the discharge conveyor belt and then continuously moved and sent out.
More preferably, the starting end of the discharge conveyor belt is wound on a discharge roller, and the rotating shaft of the discharge roller is higher than the upper surface of the conveyor belt.
The invention provides a plate material grading device for a multi-step stamping metal polar plate, which is characterized in that two parallel conveyor belts are arranged to drive the metal polar plate to be horizontally conveyed above a multi-step die forming unit between the two conveyor belts, and the metal polar plate is subjected to stamping forming on each multi-step die forming unit. According to the technical scheme, the metal pole plate is horizontally moved, so that the problems that in the prior art, when the metal pole plate is moved in a manner of winding and unwinding a coil material belt, the metal pole plate is pulled and deformed, and a die and a plate are staggered during stamping due to the pulling deformation, so that the forming precision of the metal pole plate is influenced are solved; the shape and the positioning of the metal polar plate are accurate when the stamping operation is ensured.
Drawings
FIG. 1 is a schematic perspective view of the present invention of a sheet material progressive apparatus for multi-step stamping of metal plates;
FIG. 2 is a top view of the plate progressive apparatus for multi-step stamping of metal plates of the present invention;
FIG. 3 is an enlarged view of the construction of a die press positioning unit in the sheet material progressive addition device of the present invention;
FIG. 4 is an enlarged view of the structure of the plate positioning device in the plate upgrading device of the present invention;
in the figure: 1. the device comprises a platform, a multi-step die forming unit, a conveyor belt, a discharge conveyor belt, a metal polar plate, a rotating wheel, a die pressing positioning unit, a polar plate positioning device, a stamping die inner guide column, a cylinder, a discharge roller, a positioning pin, a laser reflection sheet, a laser transmitter, a laser receiver and a discharging roller, wherein the multi-step die forming unit comprises 2, 3, the conveyor belt, 4, the discharge conveyor belt, 5, the metal polar plate, 6, the rotating wheel, 7, the die pressing positioning unit, 8, the polar plate positioning device, 9, the stamping die inner guide column, 10, the cylinder, 11, the discharge roller, 12, the positioning pin, 13, the laser reflection sheet, 14, the laser transmitter and 15.
Detailed Description
The invention provides a plate material grading device for a multi-step stamping metal polar plate, which is further described in detail with reference to the attached drawings and examples in order to make the purpose, the technical scheme and the effect of the invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The overall structure of the plate material progressive device for multi-step stamping of the metal polar plate is shown in figure 1, and comprises an integrated die carrier with a platform 1, wherein two conveyor belts 3 are separately and parallelly arranged on the platform 1, and the two conveyor belts 3 are opposite to each other and are driven to synchronously drive. The distance separating the two conveyors 3 is determined by the length of the metal plate 5 carried. Specifically, two ends of the metal plate 5 need to fall on the front surface of the conveyor belt 3, and synchronously transmit along with the two conveyor belts 3, and keep the posture translation perpendicular to the conveyor belts 3, for example, two ends of the metal plate 5 are fixed on the conveyor belts 3 by the plate positioning device 8, wherein the plate positioning device 8 is fixed on the conveyor belts 3 in advance and moves along with the conveyor belts 3.
The enlarged view of the plate positioning device 8 is shown in fig. 3, and is generally in a strip shape, and one side surface, i.e. the front surface, is provided with positioning pins 12, such as the columnar structure shown in fig. 4, for fixing two ends of the metal plate 5; the other side surface, i.e., the reverse surface, is provided with a laser reflection sheet 13. When the polar plate positioning device 8 is fixed on the front side of the conveyor belt 3, the back side of the polar plate positioning device 8 contacts the front side of the conveyor belt 3, so that the positioning pins 12 back to the conveyor belt 3, and the metal polar plate 5 is conveniently fixed; whereas the laser reflector 13 needs to be visible through the conveyor belt 3. This can be achieved by arranging the conveyor belt 3 in a building structure, and the laser reflector 13 is opposite to the hollow on the conveyor belt 3; it is also possible to select each of the conveyor belts 3 as two belts facing each other and spaced apart in parallel, and to realize the laser reflecting plate 13 facing the gap between the two belts, as shown in the top view of fig. 2.
Meanwhile, at least one multi-step press forming unit 2, preferably a set of multi-step press forming units 2, is disposed between two conveyor belts 3, for example, fixed on the platform 1, so that different pressing operations can be performed on the metal plate 5 at the upper surface of each of the multi-step press forming units 2. The multi-step press forming unit 2 is arranged perpendicular to the transmission direction of the conveyor belt, so that the metal plate 5 and the multi-step press forming unit 2 keep a completely parallel posture, are translated on the upper side of the multi-step press forming unit 2 along with the transmission of the conveyor belt 3, and stay and receive a pressing operation applied from above when moving to a position above a certain multi-step press forming unit 2 which needs to perform a pressing operation.
In a preferred embodiment, in order to ensure correct positioning of the metal plate 5 on the multi-step press-forming unit 2, positioning means may be provided on both the conveyor 3 and the platform 1, which means cooperate with each other. The method specifically comprises the following steps: a mould pressing positioning unit 7 is fixedly arranged on the platform 1 opposite to the conveyor belt 3, an enlarged view of the mould pressing positioning unit 7 is shown in figure 3, and a laser transmitter 14 and a laser receiver 15 which are positioned by light are arranged on the mould pressing positioning unit 7; accordingly, on the conveyor belt 3, a positioning device, such as a laser reflection sheet 13 shown in fig. 4, provided on the plate positioning device 8 is provided in cooperation with the molding positioning unit 7, so that the position of the metal plate 5 fixed to the plate positioning device 8 is positioned by positioning the plate positioning device 8. This can be done in two ways, one being to provide only one embossing positioning unit 7 on the platform 1, said embossing positioning unit 7 being required to be facing said conveyor belt 3. Therefore, the conveyor belt 3 moves, and when a laser reflection sheet 13 on one of the polar plate positioning devices 8 is opposite to the mould pressing positioning unit 7, the laser receiver 15 receives a laser signal which is sent by the laser transmitter 14 and reflected back by the laser reflection sheet 13, and then sends a signal to inform the conveyor belt 3 to stop transmission. Of course, the other plate positioning devices 8 fixedly arranged on the conveyor belt 3 need to stay right above the multi-step die forming units 2. That is, on the conveyor belt 3, the spacing distance between the plate positioning devices 8 fixedly arranged needs to be set in accordance with the distance between the multi-step die forming units 2, for example, the spacing distance is uniformly set and the center points are equally spaced.
The specific structure of the plate positioning device 8 is as shown in fig. 4, one side of the plate positioning device is provided with a positioning pin 12 for fixing the end of the metal plate 5, and the other side of the plate positioning device is provided with a laser reflection sheet 13, and after the plate positioning device is fixed on the front surface of the conveyor belt 3, the laser reflector 13 faces the platform 1 and is visible through the conveyor belt 3, that is, the conveyor belt 3 does not block laser from irradiating the laser reflector 13.
In another arrangement, on the platform 1, the molding positioning units 7 are arranged in a plurality, and each molding positioning unit is arranged at two ends of the multi-step molding unit 2 and is also opposite to the conveyor belt 3 above the multi-step molding unit. Therefore, when the laser reflector 13 on the lower side of the polar plate positioning device 8 moves to face a mould pressing positioning unit 7 in the conveying process of the conveyor belt 3, the metal polar plate 5 loaded on the polar plate positioning device 8 through the positioning pin 12 is also positioned right above a multi-step mould pressing forming unit 2.
In this embodiment, the positioning between the mold pressing positioning unit 7 and the plate positioning device 8 is performed by light radiation, and may be accomplished by a method of directly receiving light, specifically: the mould pressing positioning unit 7 and the polar plate positioning device 8 are respectively provided with a reflector and a receiver, such as a light emitter and a light receiver, and the polar plate positioning device 8 is fixed on the hollow structure of the conveyor belt 3. However, this arrangement has the disadvantage that the electrode plate positioning means 8, if provided with circuitry, is not readily connectable, since it follows the conveyor 3. Of course, batteries may also be used to provide power.
In a preferred embodiment, the multi-step press-forming unit 2 is provided with at least one raised inner guide post 9 for guiding the press module during the pressing operation, and the conveyor belt 3 is designed to be liftable because the metal plate 5 needs to pass over the inner guide post 9 during the conveying, and the highest point of the conveyor belt 3 is not lower than the top point of the inner guide post 9. After the conveyor belt 3 rises to the highest point, the metal plate 5 carried thereon can pass through the guide post 9 in the punching die to the correct punching position without obstruction.
Specifically, at least four rotating wheels 6 are separately arranged on the platform 1, and both ends of each conveyor belt 3 are respectively wound on one rotating wheel 6 and driven by the rotating wheels 6 to transmit. And, the rotating wheel 6 is preferably arranged on the platform 1 through a lifting cylinder, specifically, the rotating wheel 6 is arranged on a piston of a cylinder 10, and the cylinder 10 drives each rotating wheel 6 to synchronously lift, so as to drive the conveying belt 3 to lift.
That is, before the conveyor belt 3 starts to rotate, each cylinder 10 first pushes each rotating wheel 6 to rise, that is, pushes the conveyor belt 3 to rise above the guide post 9 in the stamping die. And, when the metal plate 5 is positioned right above the correct multi-step press forming unit 2, the piston is lowered, allowing the metal template 5 to fall on the multi-step press forming unit 2, receiving a pressing operation from above. After the punching operation is completed, the piston is lifted again, and the conveyor belt 3 carries the metal pole plate 5 to move continuously.
Of course, in another embodiment, instead of the positioning means, the wheel 6 is driven directly by a stepping motor and rotates in steps, i.e. in steps or in steps, so that the metal plates 5 are all facing the multi-step embossing unit 2, resting and receiving the punching operation.
After the conveyor belt 3 carries the metal pole plate 5 to complete all stamping operations, the conveyor belt 3 is tightly attached to the downstream of the conveyor belt 3, an unloading conveyor belt 4 is arranged, and the metal pole plate 5 is translated to the unloading conveyor belt 4 from the conveyor belt 3 and is continuously moved and sent out. For example, it may specifically be: the starting end of the discharging conveyor belt 4 is wound on a discharging roller 11, and the rotating shaft of the discharging roller 11 is slightly higher than the upper surface of the conveyor belt 3, so that when the metal pole plate 5 contacts the discharging conveyor belt 4, the metal pole plate is transferred to the discharging conveyor belt 4 and continues to move.
In summary, according to the plate material progressive device for multi-step stamping of the metal plate 5 provided by the present invention, two parallel conveyor belts 3 are arranged to drive the metal plate 5 to horizontally convey above the multi-step die forming unit 2 between the two conveyor belts 3, and the metal plate 5 is stamped and formed on each multi-step die forming unit 2. According to the technical scheme, the metal pole plate 5 is horizontally moved, so that the problems that in the prior art, when the metal pole plate is moved in a manner of winding and unwinding a coil material belt, the metal pole plate is pulled and deformed, and a die and a plate are staggered during stamping due to the pulling deformation, so that the forming precision of the metal pole plate is influenced are solved; the shape and the positioning of the metal polar plate 5 are accurate when the stamping operation is carried out.
The invention is not limited to the above examples, but may be modified or varied by a person skilled in the art in light of the above description, all such modifications and variations being within the scope of the invention as defined by the appended claims.
Claims (1)
1. A sheet material progressive device for multi-step stamping of metal polar plates is characterized by comprising an integrated die carrier with a platform, two conveyor belts are arranged on the platform in parallel in a manner of being opposite to and separated from each other, and at least one multi-step die pressing forming unit is fixedly arranged between the two conveyor belts and is perpendicular to the transmission direction of the conveyor belts;
two ends of the metal polar plate respectively vertically fall on the front surfaces of the two conveyor belts and move horizontally along with the conveyor belts;
the platform is opposite to the conveyor belt, is fixedly provided with a die pressing positioning unit, is matched with a polar plate positioning device on the conveyor belt, and is used for positioning the metal polar plate to move to a position right above the multi-step die pressing forming unit;
the polar plate positioning device is fixed on the front surface of the conveying belt and comprises a positioning pin back to the conveying belt, and the positioning pin is used for fixing two ends of the metal polar plate;
the mould pressing positioning unit comprises a laser head and a laser receiver which are opposite to the conveyor belt, the polar plate positioning device comprises a laser reflection sheet facing the platform, and the laser reflection sheet is visible through the conveyor belt;
the conveyor belt is of a hollow structure, and the laser reflector is opposite to the hollow part on the conveyor belt;
the mould pressing positioning unit and the polar plate positioning device are respectively provided with a transmitter and a receiver, and the polar plate positioning device is fixed on the hollow structure of the conveyor belt;
the multi-step die forming unit comprises at least one convex stamping die inner guide pillar, the conveying belt can be lifted, and the highest lifting point of the conveying belt is not lower than the top point of the stamping die inner guide pillar;
the platform is separately provided with at least four rotating wheels, two ends of each conveyor belt are wound on one rotating wheel respectively, and the rotating wheels are used for driving the conveyor belts to transmit;
the rotating wheel is arranged on a piston of an air cylinder, and can be lifted under the driving of the air cylinder to drive the conveying belt to lift;
the two conveyor belts are driven to synchronously drive, and the distance between the two conveyor belts is determined by the length of the loaded metal polar plate;
the polar plate positioning device is strip-shaped, one side surface, namely the front surface, is provided with a positioning pin which is in a columnar structure, and the other side surface, namely the back surface, is provided with a laser reflection sheet; when the polar plate positioning device is fixed on the front surface of the conveyor belt, the back surface of the polar plate positioning device contacts the front surface of the conveyor belt,
before the conveyor belt starts to rotate, each cylinder firstly pushes each rotating wheel to rise, namely, the conveyor belt is pushed to rise to be higher than the guide columns in the stamping die; when the metal pole plate is positioned right above the correct multi-step die forming unit, the piston descends to allow the metal pole plate to fall on the multi-step die forming unit to receive the stamping operation from the upper part; and after the punching operation is finished, the piston rises again, and the conveyor belt carries the metal polar plate to continue moving.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910522191.0A CN110252891B (en) | 2019-06-17 | 2019-06-17 | Plate material grading device for multi-step punching metal polar plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910522191.0A CN110252891B (en) | 2019-06-17 | 2019-06-17 | Plate material grading device for multi-step punching metal polar plate |
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| CN110252891A CN110252891A (en) | 2019-09-20 |
| CN110252891B true CN110252891B (en) | 2023-03-31 |
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| CN111036747B (en) * | 2019-11-19 | 2021-08-27 | 芜湖创挚汽车科技有限公司 | Linkage type limiting guide bracket for automobile part stamping equipment |
| CN111872253B (en) * | 2020-08-01 | 2021-03-30 | 惠州金永信五金制品有限公司 | Feeding mechanism for mechanical stamping capable of feeding and positioning rapidly |
| CN114843541A (en) * | 2021-02-02 | 2022-08-02 | 北京亿华通科技股份有限公司 | Bipolar plate processing method, control method, bipolar plate, fuel cell and vehicle |
| CN114309254B (en) * | 2021-12-28 | 2023-05-26 | 大畏机床(江苏)有限公司 | Sheet metal stamping device integrating feeding, material taking and stamping and working method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5035134A (en) * | 1989-11-06 | 1991-07-30 | Rapindex Incorporated | Indexing conveyor for a transfer die system |
| CN105344917B (en) * | 2015-11-25 | 2017-03-29 | 平湖市高鑫自动化设备科技有限公司 | Hinge processing machine |
| CN205914654U (en) * | 2016-07-26 | 2017-02-01 | 滁州达世汽车配件有限公司 | Motor -vehicle outer skin stamping device |
| CN207205500U (en) * | 2017-01-21 | 2018-04-10 | 东莞市八部电子科技有限公司 | A kind of circulating pneumatic soldering mechanism |
| CN207953165U (en) * | 2018-02-09 | 2018-10-12 | 湖北德道汽车科技有限公司 | A kind of accurate progressive die with mould inside fire attack dental structure |
| CN109201901B (en) * | 2018-09-05 | 2019-05-07 | 佛山市豹王滤芯制造有限公司 | The continuous punch forming device of filter filtering safe valve gland |
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Inventor after: Jiang Tianhao Inventor after: Xu Yifan Inventor after: Bi Feifei Inventor after: Lan Shuhuai Inventor before: Jiang Tianhao Inventor before: Xu Yifan Inventor before: Bi Feifei Inventor before: Peng Linfa Inventor before: Lan Shuhuai |
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Address after: 201306 factory building 1, No. 1500, cenglin Road, Lingang New District, pilot Free Trade Zone, Pudong New Area, Shanghai Applicant after: Shanghai Zhizhen new energy Co.,Ltd. Address before: 201306 factory building 1, no.1500, cenglin Road, Nicheng Town, Pudong New Area, Shanghai Applicant before: SHANGHAI ZHIZHEN NEW ENERGY EQUIPMENT CO.,LTD. |
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