CN110802320B - Bipolar plate production line - Google Patents
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- CN110802320B CN110802320B CN201911168679.4A CN201911168679A CN110802320B CN 110802320 B CN110802320 B CN 110802320B CN 201911168679 A CN201911168679 A CN 201911168679A CN 110802320 B CN110802320 B CN 110802320B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 58
- 238000003466 welding Methods 0.000 claims abstract description 118
- 238000009826 distribution Methods 0.000 claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims description 234
- 238000001514 detection method Methods 0.000 claims description 54
- 238000003825 pressing Methods 0.000 claims description 34
- 238000012360 testing method Methods 0.000 claims description 20
- 230000005404 monopole Effects 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 14
- 230000000007 visual effect Effects 0.000 claims description 12
- 238000009864 tensile test Methods 0.000 claims description 10
- 230000007547 defect Effects 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 4
- 239000000306 component Substances 0.000 description 24
- 230000002950 deficient Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 230000032258 transport Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 238000003860 storage Methods 0.000 description 7
- 238000011112 process operation Methods 0.000 description 6
- 238000011179 visual inspection Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automatic Assembly (AREA)
Abstract
本申请公开了一种双极板生产线。该双极板生产线包括：物流输送循环线，用于循环输送工装托盘；第一焊接工位用于将第一分配件和工装托盘所承载的第一单极板焊接成第一单极板组件，并放置于工装托盘上；第二焊接工位用于将第二分配件、水板和工装托盘所承载的第二单极板焊接成第二单极板组件，并放置于工装托盘上；第三焊接工位用于将工装托盘所承载的第一单极板组件和第二单极板组件焊接成双极板。通过上述方式将双极板的生产工艺分成多个步骤，并对每个步骤的动作采用自动化机械来实现，从而实现双极板的自动化生产，从而本申请提供的双极板生产线能够有效地提高双极板的生产效率。
The present application discloses a bipolar plate production line. The bipolar plate production line includes: a logistics conveying circulation line for circulating the tooling pallet; a first welding station for welding the first distribution piece and the first monopolar plate carried by the tooling pallet into a first monopolar plate assembly, and placing it on the tooling pallet; a second welding station for welding the second distribution piece, the water plate and the second monopolar plate carried by the tooling pallet into a second monopolar plate assembly, and placing it on the tooling pallet; a third welding station for welding the first monopolar plate assembly and the second monopolar plate assembly carried by the tooling pallet into a bipolar plate. The production process of the bipolar plate is divided into multiple steps in the above manner, and the action of each step is implemented by automated machinery, thereby realizing the automated production of the bipolar plate, so that the bipolar plate production line provided by the present application can effectively improve the production efficiency of the bipolar plate.
Description
Technical Field
The application relates to the technical field of battery production equipment, in particular to a bipolar plate production line.
Background
The bipolar plate product is a core component of a hydrogen fuel cell, and the bipolar plate is formed by welding a unipolar plate, a water plate and self accessories. The bipolar plate is welded and tested mainly through manual welding and leak detection tools. In the welding process of the bipolar plate, the welding precision of the bipolar plate is confirmed manually.
However, the welding requirement of the bipolar plate is very high, and the deviation of welding spots and the detection error of the bipolar plate are large easily caused by manual welding, so that the production efficiency of the bipolar plate is low.
Disclosure of Invention
The application mainly provides a bipolar plate production line, which aims to solve the problem of low efficiency of manual bipolar plate production.
In order to solve the technical problems, the application adopts a technical scheme that a bipolar plate production line is provided. The bipolar plate production line comprises a logistics conveying circulating line, a first welding station and a second welding station, wherein the logistics conveying circulating line is used for circulating and conveying a tooling tray, the first welding station is used for welding a first unipolar plate carried by a first distribution piece and the tooling tray and a first distribution piece to form a first unipolar plate assembly and placing the first unipolar plate assembly and the first distribution piece on the tooling tray, the second welding station is used for welding a second unipolar plate carried by a second distribution piece, a water plate and the tooling tray, a second distribution piece and the water plate to form a second unipolar plate assembly and placing the second unipolar plate assembly and the second unipolar plate assembly on the tooling tray, and the third welding station is used for welding the first unipolar plate assembly and the second unipolar plate assembly carried by the tooling tray to form a bipolar plate.
In one embodiment, the stream delivery recycle line comprises:
A conveying line including a first conveying line and a second conveying line arranged at intervals in a vertical direction for conveying the tooling pallet in opposite horizontal directions to each other;
The two lifting reflux mechanisms are respectively arranged at two ends of the conveying line and are used for moving and rotating the tooling pallet between the first conveying line and the second conveying line along the vertical direction;
the stopping mechanism is used for stopping the tooling pallet when the tooling pallet is conveyed to the corresponding station;
and the lifting and positioning mechanism is used for lifting the tooling pallet when the tooling pallet is conveyed to the corresponding station.
In one embodiment, the first welding station comprises:
a first indexing turntable;
The first distributing part feeding mechanism is used for storing the first distributing part;
The first grabbing mechanism is used for grabbing the first distributing part from the first distributing part feeding mechanism, grabbing a first unipolar plate from the tooling tray to the first indexing turntable, and carrying out indexing conveying by the first indexing turntable;
a first pressing mechanism for pressing the first dispensing member and the first unipolar plate;
A first welding mechanism for welding the compacted first distribution member and the first monopolar plate into the first monopolar plate assembly;
and the first tensile testing mechanism is used for testing the welding strength between the first distributing piece and the first monopole plate.
In one embodiment, the second welding station comprises:
The second indexing turntable and the secondary positioning mobile platform;
The second distribution part feeding mechanism is used for respectively storing the second distribution part and the water plate;
The transfer mechanism is used for grabbing the second distribution part and the water plate from the second distribution part feeding mechanism, transferring the second distribution part and the water plate to the secondary positioning moving platform, and performing secondary positioning by the secondary positioning moving platform;
The second grabbing mechanism is used for grabbing the second distribution part, the water plate and the second unipolar plate from the secondary positioning moving platform to the second indexing turntable from the tooling pallet, and carrying out indexing conveying by the second indexing turntable;
The second pressing mechanism is used for pressing the second distribution part, the water plate and the second unipolar plate;
a second welding mechanism for welding the compacted second distributor member, the water plate and the second monopolar plate into a second monopolar plate assembly;
and the second tensile testing mechanism is used for testing the welding strength between the second distribution part, the water plate and the second monopole plate.
In a specific embodiment, the third welding station includes:
A third indexing turntable;
the third grabbing mechanism is used for grabbing the first monopole plate assembly, the second monopole plate assembly and the third indexing turntable from the tooling pallet and carrying out indexing conveying by the third indexing turntable;
a third hold-down mechanism for holding down the first monopolar plate assembly and the second monopolar plate assembly;
A third welding mechanism for welding the compacted first and second monopolar plate assemblies into the bipolar plate;
And the first visual detection mechanism is used for detecting the welding quality of the bipolar plate.
In a specific embodiment, the bipolar plate production line further comprises a unipolar plate feeding station for feeding the first unipolar plate and the second unipolar plate to the tooling pallet.
In a specific embodiment, the unipolar plate loading station includes:
the single-pole plate feeding mechanism is used for storing a first material tray for bearing a first single-pole plate and a second material tray for bearing a second single-pole plate;
The material tray positioning mechanism is used for positioning the first material tray and the second material tray in the feeding mechanism;
The secondary positioning platform is used for flattening and positioning the first single-pole plate and the second single-pole plate;
The second visual detection mechanism is used for acquiring the positions of the first unipolar plate and the second unipolar plate on the secondary positioning platform;
And the fourth grabbing mechanism is used for grabbing the first unipolar plate and the second unipolar plate from the unipolar plate feeding mechanism, placing the first unipolar plate and the second unipolar plate on the secondary positioning platform for flattening and positioning, grabbing the first unipolar plate and the second unipolar plate secondarily according to the position fed back by the second visual detection mechanism, and transporting the first unipolar plate and the second unipolar plate to the tooling tray.
In a specific embodiment, the bipolar plate production line further comprises a pretreatment station, the pretreatment station comprises a marking mechanism and/or an appearance detection mechanism, the marking mechanism is used for marking the first unipolar plate and the second unipolar plate in the tooling tray, and the appearance detection mechanism is used for detecting appearance defects of the first unipolar plate and the second unipolar plate in the tooling tray.
In a specific embodiment, the pretreatment station is further used to weld dispenser subassemblies into the first dispenser part and/or the second dispenser part.
In one embodiment, the pretreatment station comprises:
The distributing part feeding mechanism is used for storing distributing part sub-parts;
a fifth grabbing mechanism, configured to grab the sub-components of the distributing member from the feeding mechanism of the distributing member;
The pressing and positioning mechanism is used for fixing and positioning the sub-components of the distributing piece transferred by the fifth grabbing mechanism;
And a fourth welding mechanism for welding the sub-components of the dispensing member fixed to the pressing and positioning mechanism to form the first dispensing member and/or the second dispensing member.
In a specific embodiment, the third welding station further places the bipolar plate on the tooling pallet, and the bipolar plate production line further includes:
and the bipolar plate air tightness detection station is used for carrying out air tightness detection on the bipolar plate borne by the tooling pallet and carrying out differentiated blanking on the bipolar plate according to the detection result.
In one embodiment, the air tightness detection station comprises:
a moving assembly and a plurality of air tightness testing mechanisms;
And the sixth grabbing mechanism is arranged on the moving assembly, grabs the loaded bipolar plates from the tooling tray under the transmission of the moving assembly, and distributes the bipolar plates to different air tightness testing mechanisms so as to synchronously detect a plurality of bipolar plates by the plurality of air tightness testing mechanisms.
The bipolar plate production line has the beneficial effects that the bipolar plate production line is different from the prior art. The work piece in the bipolar plate production process is sequentially conveyed to each station through the logistics conveying circulating line to circularly convey the tooling tray, the production efficiency of the bipolar plate is greatly improved, the first welding station is arranged to weld the first distribution piece and the first monopolar plate carried by the tooling tray into a first monopolar plate assembly and place the first monopolar plate assembly on the tooling tray, the second welding station is arranged to weld the second distribution piece, the water plate and the second monopolar plate carried by the tooling tray into a second monopolar plate assembly and place the second monopolar plate assembly on the tooling tray, the third welding station is arranged to weld the first monopolar plate assembly and the second monopolar plate assembly carried by the tooling tray into bipolar plates, the production process of the bipolar plates is divided into a plurality of steps through the mode, and the automatic production of the bipolar plates is achieved through the automatic machine for the action of each step, so that the production efficiency of the bipolar plates is effectively improved.
Drawings
For a clearer description of embodiments of the application or of solutions in the prior art, the drawings that are necessary for the description of the embodiments or of the prior art will be briefly described, it being apparent that the drawings in the description below are only some embodiments of the application, from which, without the inventive effort, other drawings can be obtained for a person skilled in the art, in which:
FIG. 1 is a schematic diagram of a bipolar plate production line according to an embodiment of the present application;
FIG. 2 is a schematic illustration of the configuration of a flow delivery recycle line in the bipolar plate production line of FIG. 1;
FIG. 3 is a schematic view of the tooling pallet in the stream transport cycle line of FIG. 2;
FIG. 4 is a schematic diagram of a monopolar plate airtightness detection station in the bipolar plate production line of FIG. 1;
FIG. 5 is a schematic diagram of a unipolar plate loading station in the bipolar plate production line of FIG. 1;
FIG. 6 is a schematic illustration of a pretreatment station in the bipolar plate production line of FIG. 1;
Fig. 7 is a schematic view of a first welding station in the bipolar plate production line of fig. 1;
FIG. 8 is a schematic illustration of a second welding station in the bipolar plate production line of FIG. 1;
Fig. 9 is a schematic view of a third welding station in the bipolar plate production line of fig. 1;
fig. 10 is a schematic diagram of a bipolar plate tightness detection station in the bipolar plate production line of fig. 1.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms "first," "second," "third," and the like in embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating an embodiment of a bipolar plate production line 100 according to the present application.
The bipolar plate production line 100 comprises a logistics transportation circulation line 10, a monopolar plate air tightness detection station 20, a bipolar plate feeding station 30, a pretreatment station 40, a first welding station 50, a second welding station 60, a third welding station 70 and a bipolar plate air tightness detection station 80.
Wherein, unipolar plate material loading station 30, pretreatment station 40, first welding station 50, second welding station 60, third welding station 70 and bipolar plate gas tightness detection station 80 set up along commodity circulation transportation circulation line 10 in proper order.
The logistics conveying circulation line 10 is used for circularly conveying the tooling pallet 13 so as to realize circulation conveying of workpieces borne by the tooling pallet 13 among the stations in sequence, the monopolar plate air tightness detection station 20 is used for carrying out air tightness detection on the first monopolar plate and/or the second monopolar plate before feeding the monopolar plate feeding station 30, the monopolar plate feeding station 30 is used for feeding the first monopolar plate and the second monopolar plate to the tooling pallet 13, the pretreatment station 40 can be used for marking the first monopolar plate and the second monopolar plate in the tooling pallet 13, detecting appearance defects and binding the corresponding tooling pallet 13, and further welding the distribution piece sub-components into first distribution pieces and/or second distribution pieces. Optionally, after the first unipolar plate and the second unipolar plate are bound to the corresponding tooling pallet 13, the first unipolar plate and the second unipolar plate bound thereto may be tracked according to the corresponding tooling pallet 13. When the first or second unipolar plate on the tooling pallet 13 is removed due to the defect detection, the first or second unipolar plate can be circulated on each station under the transportation of the logistics conveying circulation line 10, only qualified unipolar plates are processed after the tooling pallet 13 is identified by each station, then the qualified unipolar plates are fed back to the feeding station 30 to patch the unipolar plates lacking on the tooling pallet 13, and then the patch unipolar plates are processed. In addition, after the defective monopolar plate on the tooling pallet 13 is detected, the defective monopolar plate is removed, no treatment is performed on the monopolar plate on the tooling pallet 13, and the tooling pallet 13 returns to the feeding station 30 to repair the defective monopolar plate and then starts to be treated according to the normal working procedure. The first welding station 50 is used for welding a first distribution part and a first single-pole plate carried by the tooling tray 13 into a first single-pole plate assembly and placing the first single-pole plate assembly on the tooling tray 13, the second welding station 60 is used for welding a second distribution part, a water plate and a second single-pole plate carried by the tooling tray 13 into a second single-pole plate assembly and placing the second single-pole plate assembly on the tooling tray 13, the third welding station 70 is used for welding the first single-pole plate assembly and the second single-pole plate assembly carried by the tooling tray 13 into bipolar plates and placing the bipolar plates on the tooling tray 13, and the bipolar plate air tightness detection station 80 is used for detecting air tightness of the bipolar plates carried by the tooling tray 13 and differentially blanking the bipolar plates according to detection results.
Thus, the bipolar plate production line 100 can realize automatic welding and airtightness detection of bipolar plates, and rapidly and stably produce qualified bipolar plates.
The structure and function of each station will be described in order generally by the procedure.
Specifically, as shown in fig. 2, the logistics transportation circulation line 10 includes a conveying line 11, a lifting and refluxing mechanism 12, a tooling pallet 13, a stopping mechanism 14 and a lifting and positioning mechanism 15.
The conveying line 11 includes a first conveying line 110 and a second conveying line 112 that are disposed at intervals along a vertical direction, and the plurality of tooling trays 13 are disposed on the first conveying line 110 and the second conveying line 112, where the first conveying line 110 and the second conveying line 112 are respectively used for conveying the tooling trays 13 along opposite horizontal directions, so as to realize cyclic conveying of the station trays 13 between stations, and further facilitate rapid and stable production of qualified bipolar plates.
Two lifting and lowering reflow mechanisms 12 are respectively disposed at two ends of the conveying line 11 for transferring the tooling pallet 13 between the first conveying line 110 and the second conveying line 112 along the vertical direction. One of the lifting and lowering mechanisms 12 is used to transfer the work pallet 13 from the first conveying line 110 to the second conveying line 112, and the other lifting and lowering mechanism 12 is used to transfer the work pallet 13 from the second conveying line 112 to the first conveying line 110.
A plurality of stopping mechanisms 14 are arranged along the first conveying line 110, each stopping mechanism 14 corresponds to a station, and each stopping mechanism 14 is used for stopping the loading tray 13 when the tooling tray 13 is conveyed to the corresponding station, so that buffering and releasing of the tooling tray 13 before the corresponding station are realized, and corresponding processes are conveniently executed by each station. The lifting and positioning mechanism 15 is used for lifting the tooling pallet 13 when the tooling pallet 13 is conveyed to the corresponding station, so that the accurate positioning of the tooling pallet 13 at each station is realized.
As shown in fig. 3, the tooling pallet 13 can bear the first unipolar plate and the second unipolar plate at the same time, and positioning holes for positioning the first unipolar plate and the second unipolar plate are formed in the tooling pallet 13, so that accurate positioning of the first unipolar plate and the second unipolar plate is realized.
The first conveying line 110 drives the tooling pallet 13 to move along the horizontal direction, and pauses at positions corresponding to the stations under the action of the stopping mechanism 14 in sequence, then the lifting positioning mechanism 15 lifts the tooling pallet 13 to a preset height so that the stations execute corresponding process operations, after the operations are finished, the lifting positioning mechanism 15 returns to the original position, the stopping mechanism 14 allows the tooling pallet 13 to pass through until the empty tooling pallet 13 is transported to the second conveying line 112 by the lifting reflux mechanism 12 after the process operations are finished, and is transported to the first conveying line 110 again by the other lifting reflux mechanism 12, so that the process circulation of the tooling pallet 13 is realized.
The tool trays 13 are spaced at a set distance, and are suspended at the same time, so that corresponding process operation is realized by the tool trays 13 corresponding to the stations, namely, the tool trays 13 corresponding to the stations can be used for executing the process operation at the same time, and the manufacturing efficiency of the bipolar plate is greatly improved. If the interval distance between the adjacent tooling trays 13 is not the set distance, one of the adjacent tooling trays 13 can be cached, and then the other tooling tray is adjusted to enable the interval between the adjacent tooling trays 13 to be the set distance, so that the conveying rhythm of each tooling tray 13 is unified, and a plurality of tooling can simultaneously execute process operation with the corresponding tooling tray 13.
As shown in fig. 1, the monopole plate air tightness detection station 20 is not required to be arranged along the logistics transportation circulation line 10, and can be arranged at any position, which is not limited in the application.
As shown in fig. 4, the monopolar plate air tightness detection station 20 includes a feeding moving sliding table 21 and an air tightness detection tool 22, the feeding moving sliding table 21 is used for conveying the monopolar plate into the air tightness detection tool 22, and the air tightness detection tool 22 is used for air tightness detection of the monopolar plate so as to detect whether a leakage point exists on the monopolar plate. Considering that the monopole plate has corresponding quality control standard before delivery, the application adopts a spot check mode to detect the air tightness of the monopole plate in order to improve the manufacturing efficiency of the bipolar plate.
For example, the feeding moving sliding table 21 comprises a motor, a sliding rail, a sliding block and a supporting table, and the motor drives the sliding block to drive the supporting table to slide reciprocally along the sliding rail through a transmission piece such as a belt and a screw rod assembly, so that the monopole board is fed into the air tightness detection tool 22 and is moved out of the air tightness detection tool 22. The air tightness detection tool 22 comprises a sealed shell and an air tightness detector, wherein the air tightness detector detects the air tightness of the electrode plate in a sealed space formed by the sealed shell.
Both the qualified and non-inspected unipolar plates are positioned on the unipolar plate loading station 30, and the structure and function of the unipolar plate loading station 30 is described next.
As shown in fig. 5, the unipolar plate loading station 30 includes a unipolar plate loading mechanism 31, a tray positioning mechanism 32, a secondary positioning platform 33, a second visual inspection mechanism 34, and a fourth grasping mechanism 35. The unipolar plate feeding mechanism 31, the tray positioning mechanism 32, the secondary positioning platform 33 and the second visual inspection mechanism 34 are all installed on the same station platform.
The first charging tray 312 and the second charging tray 314 are simultaneously stored on the unipolar plate feeding mechanism 31, the first charging tray 312 is used for bearing a first unipolar plate, the second charging tray 314 is used for bearing a second unipolar plate, the unipolar plate feeding mechanism 31 can enable the first unipolar plate and the second unipolar plate which are grabbed by the fourth grabbing mechanism 35 to be at the same position and the same height each time, and then the material taking difficulty of the fourth grabbing mechanism 35 is reduced, the charging tray positioning mechanism 32 is used for positioning the positions of the first charging tray 312 and the second charging tray 314, the first charging tray 312 and the second charging tray 314 after replacement are still at the same position, and the material taking difficulty of the fourth grabbing mechanism 35 is further reduced.
The unipolar plate feeding mechanism 31 may be a clip feeding mechanism, and after the unipolar plates carried by the first tray 312 and/or the second tray 314 are grabbed, the clip feeding mechanism pushes another tray carrying the unipolar plate up to the position to be grabbed, so that the fourth grabbing mechanism 35 grabs the first unipolar plate and the second unipolar plate from the same position and the same height each time.
The fourth grabbing mechanism 35 includes an industrial robot, a flattening component and a gripper component, where the end of the mechanical arm of the industrial robot is connected with the flattening component and the gripper component, the flattening component is used to flatten the first unipolar plate or/and the second unipolar plate before the gripper component grabs the first unipolar plate or/and the second unipolar plate, and then the gripper component grabs the first unipolar plate or/and the second unipolar plate, and the gripper component may be a vacuum chuck.
The secondary positioning platform 33 is used for flattening and positioning the first unipolar plate and the second unipolar plate, so as to reduce the risk of deformation of the first unipolar plate and the second unipolar plate during the grabbing process. In the process operation, the fourth grabbing mechanism 35 grabs the corresponding unipolar plate from the first tray 312 or the second tray 314, places the unipolar plate on the secondary positioning platform 33, and after the unipolar plate is flattened for the second time, the fourth grabbing mechanism 35 grabs and transports the unipolar plate onto the tooling tray 13.
When the first unipolar plate and the second unipolar plate are placed on the secondary positioning platform 33, the second visual detection mechanism 34 obtains position coordinates of the first unipolar plate and the second unipolar plate and feeds back to the fourth grabbing mechanism 35, so as to match the fourth grabbing mechanism 35 to realize accurate discharging after material taking.
Specifically, the fourth grabbing mechanism 35 grabs the first unipolar plate and the second unipolar plate from the unipolar plate feeding mechanism 31, and places the first unipolar plate and the second unipolar plate on the secondary positioning platform 33 for flattening and positioning, and then grabs the first unipolar plate and the second unipolar plate for the second time according to the position coordinates fed back by the second visual detection mechanism, and transfers the first unipolar plate and the second unipolar plate to the tooling tray 13.
The logistics transport circulation line 10 then transports the tooling pallet 13 to the pre-treatment station 40.
As shown in fig. 6, the pretreatment station 40 includes a marking mechanism 46 and/or an appearance detection station 47, the marking mechanism 46 is used for marking the first unipolar plate and the second unipolar plate in the tooling tray 13 so as to facilitate the subsequent identification of relevant information of the first unipolar plate and the second unipolar plate, for example, the first unipolar plate and the second unipolar plate can be distinguished by using the information, and the marking mechanism can also be used for detecting whether the marking content is qualified or not, and the appearance detection mechanism 47 is used for performing appearance defect detection on the first unipolar plate and the second unipolar plate in the tooling tray 13 so as to preliminarily detect the defective first unipolar plate and the defective second unipolar plate from appearance, and binding the defective first unipolar plate and the defective second unipolar plate with the corresponding tooling tray 13, so that the first unipolar plate and/or the defective second unipolar plate on the tooling tray 13 can be distinguished so as to facilitate the subsequent removal of the defective first unipolar plate and the defective second unipolar plate, thereby facilitating the improvement of the qualification rate of the bipolar plate.
The pretreatment station 40 is further used to weld the dispenser subcomponents into a first dispenser and/or a second dispenser. The pretreatment station 40 further includes a dispensing part loading mechanism 41, a fifth grasping mechanism 42, a compacting and positioning mechanism 43, a fourth welding mechanism 44, and a storage mechanism 45.
The dispensing part feeding mechanism 41 is used for storing dispensing part sub-components, the fifth grabbing mechanism 42 grabs the dispensing part sub-components from the dispensing part feeding mechanism 41 to the compressing and positioning mechanism 43, the compressing and positioning mechanism 43 is used for fixing and positioning the dispensing part sub-components transferred by the fifth grabbing mechanism, the fourth welding mechanism 44 is used for welding and fixing the dispensing part sub-components on the compressing and positioning mechanism 43 so as to form first dispensing parts and/or second dispensing parts, and the fifth grabbing mechanism 42 transfers the welded first dispensing parts and/or second dispensing parts to the storage mechanism 45.
The distribution member feeding mechanism 41 is substantially the same as the structure of the unipolar plate feeding mechanism 31, and the distribution member feeding mechanism 41 is used for realizing automatic feeding of the distribution sub-members. The fifth gripping mechanism 42 is substantially identical in construction to the fourth gripping mechanism 35 described above for gripping and transporting the dispensing sub-components and the first and second dispensing members.
The pressing and positioning mechanism 43 comprises two pressing plates, two sets of servo push rods and two sets of air cylinders, the two sets of servo push rods respectively push the corresponding pressing plates from two horizontal directions perpendicular to each other to realize pressing and positioning on the sub-components of the distribution member, the two sets of air cylinders respectively provide power for the corresponding servo push rods, and the pressing and positioning on the distribution member are realized by adjusting the displacement of the servo push rods, so that the laminated sub-component surfaces of the distribution member are fully contacted with each other, the cold joint between the sub-components of the distribution member is avoided, the welding effect of high quality is realized when the fourth welding mechanism 44 is used for welding the sub-components of the distribution member, and the fourth welding mechanism 44 further comprises a dust removing system used for cleaning dust generated by welding and the like. The storage mechanism 45 has substantially the same structure as the unipolar plate feeding mechanism 31, and the welded first and second dispensers are loaded into the storage mechanism 45.
In this embodiment, the dispensing sub-assembly has two specifications to respectively form the first dispensing member and the second dispensing member in a subsequent process. In other words, the dispensing part feeding mechanism 41 simultaneously feeds two types of dispensing part sub-components, the dispensing part sub-component of the first type is welded to form a first dispensing part, the dispensing part sub-component of the second type is welded to form a second dispensing part, the storage mechanism 45 can be correspondingly divided into a first dispensing part feeding mechanism 451 and a second dispensing part feeding mechanism 452, the first dispensing part feeding mechanism 451 stores the first dispensing part, and the second dispensing part feeding mechanism 452 stores the second dispensing part. The first dispensing member feed mechanism 451 is then transferred to the first welding station 50 and the second dispensing member feed mechanism 452 is transferred to the second welding station 60, where the transfer of the first dispensing member feed mechanism 451 and the second dispensing member feed mechanism 452 may be accomplished by mechanical means or manually. The structure of the storage mechanism 45 is substantially the same as that of the unipolar plate feeding mechanism 31, and the storage mechanism 45 may be a cartridge clip type feeding mechanism.
The logistics transport cycle line 10 then transports the tooling pallet 13 to the first welding station 50.
As shown in fig. 7, the first welding station 50 includes a first index rotary table 51, a first dispensing member feeding mechanism 451, a visual inspection member 52, a first pressing mechanism 53, a first welding mechanism 54, a first tension testing mechanism 55, a first grasping mechanism 56, and a blanking box 57.
The visual inspection piece 52 may be a visual camera or an intelligent video camera, and is used for photographing and positioning the first distribution piece, so that the first grabbing mechanism 56 can accurately grab the first distribution piece from the first distribution piece feeding mechanism 451 and place the first distribution piece in the feeding level tooling of the first indexing turntable 51, the first grabbing mechanism 56 also grabs the first unipolar plate from the tooling tray 13 and transfers the first unipolar plate to the feeding level tooling, the first indexing turntable 51 sequentially carries the tooling carrying the first unipolar plate and the first distribution piece to the first pressing mechanism 53, the first tensile testing mechanism 55 and the discharging level, wherein the first pressing mechanism 53 is used for pressing the first distribution piece and the first unipolar plate to avoid a cold joint between the first distribution piece and the first unipolar plate, the first welding mechanism 54 is used for welding the pressed first distribution piece and the first unipolar plate into the first unipolar plate assembly, the first welding mechanism 54 comprises a dust removing system, the dust removing system is used for welding generated unipolar dust, the first tensile testing mechanism 55 is used for detecting the strength between the first distribution piece and the first unipolar plate, the first tensile testing mechanism is used for testing the strength between the first distribution piece and the first unipolar plate, the first unipolar plate assembly is discarded to the first acceptable carrier 57, and the first acceptable carrier assembly is discarded to the first acceptable carrier 57.
In this embodiment, the motor drives the first indexing turntable 51 to rotate to realize circulation on four stations, the first pressing mechanism 53 includes a servo push rod and an air cylinder, the air cylinder drives the servo push rod to press the first distributing member and the first unipolar plate, the first welding mechanism 54 is a laser welding machine, the first tensile testing mechanism 55 is a tensile testing machine, and the first grabbing mechanism 56 has substantially the same structure as the fifth grabbing mechanism 42.
The logistics transport cycle line 10 then transports the tooling pallet 13 to the second welding station 60.
As shown in fig. 8, the second welding station 60 includes a second indexing table 61, a second dispensing part feeding mechanism 452, a visual inspection part 62, a second pressing mechanism 63, a second welding mechanism 64, a second tensile testing mechanism 65, a second grabbing mechanism 66, a blanking box 67, a transferring mechanism 68, and a secondary positioning moving platform 69.
The second distributing member feeding mechanism 452 is simultaneously used for respectively storing the second distributing member and the water plate and automatically feeding the second distributing member and the water plate; the transfer mechanism 68 adopts a vacuum adsorption mode to simultaneously grasp the second distribution member and the water plate from the second distribution member feeding mechanism 452, and transfers the second distribution member and the water plate to the secondary positioning moving platform 69; the secondary positioning moving platform 69 performs secondary leveling and positioning on the second distribution member and the water plate, and moves the second distribution member and the water plate to the grabbing position of the second grabbing mechanism 66, the visual detection member 62 can be a visual camera, and is used for photographing and positioning the second distribution member and the water plate on the secondary positioning moving platform 69, so that the second grabbing mechanism 66 can accurately grab the second distribution member and the water plate from the secondary positioning moving platform 69 to put the second distribution member and the water plate into the upper material position of the second distribution turntable 61, the second grabbing mechanism 66 also grabs the second unipolar plate from the inside of the tooling tray 13 to the upper material position of the second distribution turntable 61, the second distribution turntable 61 rotates the upper material position to the second pressing mechanism 63, the second pressing mechanism 63 is used for pressing the second distribution member, the water plate and the second unipolar plate, the second distribution member, the water plate and the second unipolar plate are fully contacted, the second welding mechanism 64 is used for accurately grabbing the second distribution member, the water plate and the second unipolar plate assembly is avoided, the second testing mechanism 65 is used for grabbing the second unipolar plate assembly, and the second unipolar assembly is not welded to the second unipolar assembly is welded to the second unipolar assembly, and the second assembly is not welded to the qualified assembly is tested to the second unipolar assembly 67, and the second unipolar assembly is not welded to the second unipolar assembly is detected to the second unipolar assembly and the second assembly is not qualified.
The logistics transport cycle line 10 then transports the tooling pallet 13 to the third welding station 70.
As shown in fig. 9, the third welding station 70 includes a third index dial 71, a third hold-down mechanism 72, a third welding mechanism 73, a first visual inspection mechanism 74, a third grasping mechanism 75, and a blanking box 76.
The third grabbing mechanism 75 is used for grabbing the first monopolar plate assembly and the second monopolar plate assembly from the tooling pallet 13, transporting the first monopolar plate assembly and the second monopolar plate assembly to the feeding position of the third indexing turntable 71, indexing and conveying the first monopolar plate assembly and the second monopolar plate assembly by the third indexing turntable 71, rotating the feeding position of the third indexing turntable 71 to the third pressing mechanism 72, pressing the first monopolar plate assembly and the second monopolar plate assembly by the third pressing mechanism 72 to avoid cold joint between the first monopolar plate assembly and the second monopolar plate assembly, welding the pressed first monopolar plate assembly and the pressed second monopolar plate assembly to bipolar plates by the third welding mechanism 73, detecting the welding quality of the bipolar plates by the first visual detection mechanism 74, placing the bipolar plates which are unqualified in detection into the blanking box 76, and placing the bipolar plates which are qualified in detection into the tooling pallet 13.
Afterwards, the logistics conveying circulation line 10 conveys the tooling pallet 13 to the bipolar plate air tightness detection station 80, and the bipolar plate air tightness detection station 80 is used for carrying out air tightness detection on the bipolar plate carried by the tooling pallet 13 and carrying out differentiated blanking on the bipolar plate according to the detection result.
As shown in fig. 10, the bipolar plate airtightness detection station 80 includes a moving assembly 81, a sixth gripping mechanism 82, an airtightness testing mechanism 83, a good product magazine 84, and a defective product magazine 85.
The sixth grabbing mechanism 82 is arranged on the moving assembly 81, grabs the bipolar plates carried by the moving assembly 81 from the tooling tray 13 under the transmission of the moving assembly 81, and distributes the bipolar plates to different air tightness testing mechanisms 83, so that the air tightness testing mechanisms 83 synchronously detect the bipolar plates to detect whether leakage points exist in the cavities of the bipolar plates, the sixth grabbing mechanism 82 places the bipolar plates qualified in the air tightness test into good product boxes 84, and places the bipolar plates unqualified in the air tightness test into defective product boxes 85.
In this embodiment, a plurality of air tightness testing mechanisms 83 are disposed along two sides of the moving assembly 81, the moving assembly 81 drives the sixth grabbing mechanism 82 to move along the trajectory defined by the moving assembly 81, so as to sequentially place the bipolar plates on the tooling pallet 13 to each air tightness testing mechanism 83, and the moving assembly 81 effectively increases the operation space range of the sixth grabbing mechanism 82.
Unlike the prior art, the application discloses a bipolar plate production line. The work piece in the bipolar plate production process is sequentially conveyed to each station through the logistics conveying circulating line to circularly convey the tooling tray, the production efficiency of the bipolar plate is greatly improved, the first welding station is arranged to weld the first distribution piece and the first monopolar plate carried by the tooling tray into a first monopolar plate assembly and place the first monopolar plate assembly on the tooling tray, the second welding station is arranged to weld the second distribution piece, the water plate and the second monopolar plate carried by the tooling tray into a second monopolar plate assembly and place the second monopolar plate assembly on the tooling tray, the third welding station is arranged to weld the first monopolar plate assembly and the second monopolar plate assembly carried by the tooling tray into bipolar plates, the production process of the bipolar plates is divided into a plurality of steps through the mode, and the automatic production of the bipolar plates is achieved through the automatic machine for the action of each step, so that the production efficiency of the bipolar plates is effectively improved.
The foregoing description is only illustrative of the present application and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present application.
Claims (11)
1. A bipolar plate production line, comprising:
the logistics conveying circulating line is used for circularly conveying the tool trays;
the single-pole plate feeding station is used for feeding the first single-pole plate and the second single-pole plate to the tooling tray;
the first welding station is used for welding a first distribution part and the first monopole plate carried by the tooling pallet into a first monopole plate assembly, and placing the qualified first monopole plate assembly on the tooling pallet;
the second welding station is used for welding the second distribution part, the water plate and the second monopole plate carried by the tooling pallet into a second monopole plate assembly, and placing the second monopole plate assembly which is qualified in welding on the tooling pallet;
the third welding station is used for welding the first monopolar plate component and the second monopolar plate component carried by the tooling pallet to bipolar plates, and placing the bipolar plates which are qualified in welding in the tooling pallet;
The first welding station comprises a first indexing turntable, a first pressing mechanism, a first welding mechanism and a first grabbing mechanism, wherein the first grabbing mechanism is used for grabbing the first distributing part and the first unipolar plate to the first indexing turntable and carrying out indexing conveying by the first indexing turntable, the first pressing mechanism is used for pressing the first distributing part and the first unipolar plate, the first welding mechanism is used for welding the pressed first distributing part and the first unipolar plate into a first unipolar plate assembly, and the first grabbing mechanism is used for placing the first unipolar plate assembly qualified in welding on the tooling pallet;
the second welding station comprises a second indexing turntable, a secondary positioning moving platform, a transfer mechanism, a second grabbing mechanism, a second pressing mechanism and a second welding mechanism, wherein the transfer mechanism is used for transferring the second distribution member and the water plate to the secondary positioning moving platform and carrying out secondary positioning and transferring by the secondary positioning moving platform, the second grabbing mechanism is used for grabbing the second distribution member and the water plate from the secondary positioning moving platform and grabbing the second unipolar plate from the inside of the tooling pallet to the second indexing turntable and carrying out indexing conveying by the second indexing turntable, the second pressing mechanism is used for pressing the second distribution member, the water plate and the second unipolar plate, and the second welding mechanism is used for welding the pressed second distribution member, the pressed water plate and the second unipolar plate into a second unipolar plate assembly;
The third welding station comprises a third indexing turntable, a third grabbing mechanism, a third pressing mechanism and a third welding mechanism, wherein the third grabbing mechanism is used for grabbing the first single-pole plate assembly and the second single-pole plate assembly from the inside of the tool tray to the third indexing turntable and carrying out indexing conveying by the third indexing turntable, the third pressing mechanism is used for pressing the first single-pole plate assembly and the second single-pole plate assembly, and the third welding mechanism is used for welding the pressed first single-pole plate assembly and second single-pole plate assembly into the bipolar plate.
2. The bipolar plate production line of claim 1, wherein the stream delivery recycle line comprises:
A conveying line including a first conveying line and a second conveying line arranged at intervals in a vertical direction for conveying the tooling pallet in opposite horizontal directions to each other;
The two lifting reflux mechanisms are respectively arranged at two ends of the conveying line and are used for moving and rotating the tooling pallet between the first conveying line and the second conveying line along the vertical direction;
the stopping mechanism is used for stopping the tooling pallet when the tooling pallet is conveyed to the corresponding station;
and the lifting and positioning mechanism is used for lifting the tooling pallet when the tooling pallet is conveyed to the corresponding station.
3. The bipolar plate production line of claim 1, wherein the first welding station comprises:
The first distributing part feeding mechanism is used for storing the first distributing part;
and the first tensile testing mechanism is used for testing the welding strength between the first distributing piece and the first monopole plate.
4. The bipolar plate production line of claim 1, wherein the second welding station comprises:
the second distribution part feeding mechanism is used for respectively storing the second distribution part and the water plate;
and the second tensile testing mechanism is used for testing the welding strength between the second distribution part, the water plate and the second monopole plate.
5. The bipolar plate production line of claim 1, wherein the third welding station comprises:
And the first visual detection mechanism is used for detecting the welding quality of the bipolar plate.
6. The bipolar plate production line of claim 1, wherein the unipolar plate loading station comprises:
the single-pole plate feeding mechanism is used for storing a first material tray for bearing a first single-pole plate and a second material tray for bearing a second single-pole plate;
The tray positioning mechanism is used for positioning the first tray and the second tray in the unipolar plate feeding mechanism;
The secondary positioning platform is used for flattening and positioning the first single-pole plate and the second single-pole plate;
The second visual detection mechanism is used for acquiring the positions of the first unipolar plate and the second unipolar plate on the secondary positioning platform;
And the fourth grabbing mechanism is used for grabbing the first unipolar plate and the second unipolar plate from the unipolar plate feeding mechanism, placing the first unipolar plate and the second unipolar plate on the secondary positioning platform for flattening and positioning, grabbing the first unipolar plate and the second unipolar plate secondarily according to the position fed back by the second visual detection mechanism, and transporting the first unipolar plate and the second unipolar plate to the tooling tray.
7. The bipolar plate production line according to claim 1, further comprising a pretreatment station, wherein the pretreatment station comprises a marking mechanism and/or an appearance detection mechanism, the marking mechanism is used for marking the first unipolar plate and the second unipolar plate in the tooling tray, and the appearance detection mechanism is used for detecting appearance defects of the first unipolar plate and the second unipolar plate in the tooling tray.
8. The bipolar plate production line of claim 7, wherein the pretreatment station is further used to weld a distributor sub-assembly into the first distributor member and/or the second distributor member.
9. The bipolar plate production line of claim 8, wherein the pretreatment station comprises:
The distributing part feeding mechanism is used for storing distributing part sub-parts;
a fifth grabbing mechanism, configured to grab the sub-components of the distributing member from the feeding mechanism of the distributing member;
The pressing and positioning mechanism is used for fixing and positioning the sub-components of the distributing piece transferred by the fifth grabbing mechanism;
And a fourth welding mechanism for welding the sub-components of the dispensing member fixed to the pressing and positioning mechanism to form the first dispensing member and/or the second dispensing member.
10. The bipolar plate production line of claim 1 wherein,
The third welding station further places the bipolar plate on the tooling pallet, the bipolar plate production line further comprising:
and the bipolar plate air tightness detection station is used for carrying out air tightness detection on the bipolar plate borne by the tooling pallet and carrying out differentiated blanking on the bipolar plate according to the detection result.
11. The bipolar plate production line of claim 10, wherein the gas tightness detection station comprises:
a moving assembly and a plurality of air tightness testing mechanisms;
And the sixth grabbing mechanism is arranged on the moving assembly, grabs the loaded bipolar plates from the tooling tray under the transmission of the moving assembly, and distributes the bipolar plates to different air tightness testing mechanisms so as to synchronously detect a plurality of bipolar plates by the plurality of air tightness testing mechanisms.
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| CN111805118B (en) * | 2020-09-04 | 2021-03-02 | 爱德曼氢能源装备有限公司 | A device for automatic positioning and welding of fuel cell bipolar plates |
| CN112620942A (en) * | 2021-01-14 | 2021-04-09 | 深圳威迈斯新能源股份有限公司 | Copper bar laser welding process method, IGBT module assembly and new energy automobile |
| CN112816856A (en) * | 2021-02-03 | 2021-05-18 | 深圳市联合东创科技有限公司 | Circuit board detection system |
| CN112794018A (en) * | 2021-02-03 | 2021-05-14 | 深圳市联合东创科技有限公司 | Full-automatic testing production system for flexible circuit board |
| CN112903195A (en) * | 2021-03-04 | 2021-06-04 | 武汉华工激光工程有限责任公司 | Air tightness detection station for automatic welding of fuel cell bipolar plate |
| CN113102881A (en) * | 2021-03-29 | 2021-07-13 | Fa自动化系统有限公司 | Lead frame processing system |
| CN115781015B (en) * | 2023-01-26 | 2023-06-06 | 适新科技（苏州）有限公司 | Welding device and method for metal bipolar plate of ultrathin fuel cell |
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