CN109623191B - Welding production process for bipolar plate of fuel cell - Google Patents
Welding production process for bipolar plate of fuel cell Download PDFInfo
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- CN109623191B CN109623191B CN201910031309.XA CN201910031309A CN109623191B CN 109623191 B CN109623191 B CN 109623191B CN 201910031309 A CN201910031309 A CN 201910031309A CN 109623191 B CN109623191 B CN 109623191B
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- 238000003466 welding Methods 0.000 title claims abstract description 77
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 239000000446 fuel Substances 0.000 title claims abstract description 22
- 239000001301 oxygen Substances 0.000 claims abstract description 35
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 238000007689 inspection Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000005070 sampling Methods 0.000 claims abstract description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 18
- 230000001502 supplementing effect Effects 0.000 claims description 15
- 239000001257 hydrogen Substances 0.000 claims description 14
- 229910052739 hydrogen Inorganic materials 0.000 claims description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 10
- 230000032258 transport Effects 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 239000000758 substrate Substances 0.000 abstract 2
- 239000000047 product Substances 0.000 description 7
- 230000003028 elevating effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Classifications
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a welding production process of a bipolar plate of a fuel cell, which comprises the steps of feeding a monopolar plate, welding a hydrogen-oxygen polar plate, transferring the bipolar plate, manually performing sampling inspection, detecting air tightness and feeding the bipolar plate; two hydrogen-oxygen unipolar plates are placed on the unipolar plates in a matched mode on a double-substrate transfer mode, the hydrogen-oxygen unipolar plates are welded when reaching a substrate welding station, the welded hydrogen-oxygen unipolar plates are combined into a bipolar plate and transferred to the bipolar plate transfer mode, the bipolar plate transfer mode sends the bipolar plate to a manual sampling inspection station and an air tightness detection station, and the bipolar plate subjected to air tightness detection is packaged at the lower line position of the bipolar plate; according to the invention, the suction mechanical hands are arranged at the front end position, the welding position, the tail end position and the air tightness detection line-up position of the speed-multiplying chain, and a plurality of air tightness detection line-down positions, so that the bipolar plates are packaged by the line-down mechanical hands after the welding and air tightness detection processes are completed, and the whole production line is completed by matching a full-automatic mechanical structure with an electrical structure.
Description
Technical Field
The invention relates to the technical field of new energy fuel bipolar plates, in particular to a welding production process of a fuel cell bipolar plate.
Background
The new energy fuel cell is used as a novel fuel capable of replacing gasoline and diesel oil, and under the combined action of limited petroleum resources and adverse environmental factors, the new energy fuel cell is widely valued and technically improved as a substitute product thereof, particularly the technology of the hydrogen fuel cell, and the new energy fuel cell is a development wind vane of new energy because no pollutant is generated.
The existing welding technology of the bipolar plate has low automation degree to a welding production line, particularly on-line of the bipolar plate, continuous transmission and respective transmission to trays at different positions cannot be realized in the whole process of welding and bipolar plate off-line, and manual work or auxiliary equipment is usually needed to help to complete the action, so that the action time is prolonged, a large amount of manpower is consumed, the continuity of the whole welding production line is influenced, the production cost is improved, the production efficiency is reduced, and the requirement of batch production of the bipolar plate cannot be met.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a welding production process of a bipolar plate of a fuel cell, which solves the following technical problems:
1) the automation degree of the bipolar plate welding production line is improved, the labor cost is reduced, and the production efficiency is improved;
2) the tray is transferred between the unipolar plate and the bipolar plate, and the backflow action from the bipolar plate to the empty tray is continuously finished without manual or auxiliary manual equipment;
3) the welding quality detection and the welding are continuously carried out, and logical material supplement is carried out on a group of four pieces, so that no vacancy is generated during the boxing.
The purpose of the invention can be realized by the following technical scheme:
a welding production process of a fuel cell bipolar plate comprises the steps of feeding a monopolar plate, welding a hydrogen-oxygen polar plate, transferring the bipolar plate, manually performing sampling inspection, detecting air tightness and feeding the bipolar plate; two unipolar boards of oxyhydrogen are paired on the unipolar board and are placed bipolar plate and transport, and the oxyhydrogen unipolar board welds when arriving polar plate welding station, and the synthetic bipolar plate of oxyhydrogen unipolar board after the welding transfers bipolar plate again and transports in, and bipolar plate transports and sends bipolar plate to artifical spot check station and gas tightness detection station, and the bipolar plate that detects through the gas tightness rolls off the production line position at bipolar plate and packs, and concrete process flow is as follows:
and (3) single-pole plate line feeding: the on-line lifting platform transfers two empty trays from the third layer of speed-multiplying chain to the first layer of speed-multiplying chain side by side through the lifting action, the trays are transmitted to the positioning position of the on-line tray through the static friction action of the transmission chain, the on-line lifting platform is lowered to the position of the third layer of speed-multiplying chain at the bottom layer, the empty trays are continuously transferred to the first layer of speed-multiplying chain, when the trays are moved to the position where the on-line trays are positioned, the detention pin is controlled to stay above the positioning of the upper wire tray through photoelectric induction, the upper wire tray is positioned and lifted upwards to position the tray through the positioning pin, the upper wire manipulator pairs and grasps the oxygen electrode unipolar plate and the hydrogen electrode unipolar plate, the oxygen electrode unipolar plate is firstly placed above the tray, the hydrogen electrode unipolar plate is then placed above the oxygen electrode unipolar plate by the upper wire manipulator, when the two trays are placed in sequence, the positioning descending tray of the on-line tray falls onto the first layer of speed multiplying chain and is conveyed to the welding station;
welding a hydrogen-oxygen polar plate: the tray conveys two matched oxyhydrogen unipolar plates to a welding station, a roller vertical to the direction of a double-speed chain transmission is controlled to rise through photoelectric induction, the roller conveys the tray to a transfer lifting table, the transfer lifting table rises to fix the position of the tray, a welding manipulator firstly scans and grasps the upper-layer hydrogen unipolar plate through a lifting table rising signal, the manipulator rotates 180 degrees to grasp the oxygen unipolar plate and horizontally moves to an original point position, scans and grasps the lower part of the oxygen unipolar plate, then the oxygen unipolar plate is firstly placed on a welding table through the rotation of the manipulator, the manipulator rotates 180 degrees to place the hydrogen unipolar plate above the oxygen unipolar plate, the manipulator moves back to the original point position, and a welding head welds the two oxyhydrogen unipolar plates into a bipolar plate;
transferring the bipolar plate: the welding manipulator grabs the welded bipolar plate and moves the welded bipolar plate again to be placed on an empty tray on the transplanting lifter, the bipolar plate tray is lowered to the parallel position of the second layer of speed-multiplying chain by the transferring lifter, the transferring lifter conveying belt is matched with a roller on the second layer of speed-multiplying chain to move the tray to the second layer of speed-multiplying chain, the bipolar plate tray is repositioned at the tail end of the second layer of speed-multiplying chain, the bipolar plate is clamped and separated from the second layer of speed-multiplying chain by the manipulator when the tray is positioned, the empty tray is lowered to the third layer of speed-multiplying chain at the tail end of the second layer of speed-multiplying chain by the offline tray lifter, and the tray is returned to the position of the online lifter by the straight line of the third layer of speed-multiplying chain;
manual sampling inspection: the side edge of the tail end of the second layer of speed-multiplying chain is provided with a manual sampling inspection table which is perpendicular to the second layer of speed-multiplying chain and is on the same plane with the second layer of speed-multiplying chain, the manual sampling inspection table selects a tray where any bipolar plate on the second layer of speed-multiplying chain is located through a sampling inspection control button at one end, and the tray is vertically conveyed through the mutual matching of a roller and the manual sampling inspection table;
and (3) air tightness detection: the bipolar plates perform secondary positioning on the two trays through secondary positioning of the tail end of the second layer of speed-multiplying chain, the two bipolar plates are transplanted to the air tightness detection transfer table through the transfer manipulator, the transfer manipulator forms a group of four bipolar plates through twice transferring, and the air tightness detection line-feeding manipulator transfers the four bipolar plates in the group to the air tightness detection table;
and (3) inserting the bipolar plate into a line: the gas tightness detects the platform and will detect the result and transmit for the mechanical hand of unloading, the mechanical hand of unloading will unqualified bipolar plate move to NG bench, NG bench uses ten bipolar plates to pile up as a set of, qualified bipolar plate transfers to the material supplementing bench in the four pieces, the material supplementing bench carries out the operation and matches with the bipolar plate quantity on the material supplementing bench to four next group of bipolar plates through logical operation, the mechanical hand of unloading snatchs the bipolar plate on the material supplementing bench when pairing into four a set of, transfer to the bipolar plate transfer box in.
As a further scheme of the invention, a detention pin controlled by a photoelectric sensing switch is arranged at the positioning position of the tray on the first layer of speed multiplying chain and the position of the first layer of speed multiplying chain above the roller, the detention pin is normally contracted, and when the tray reaches the position of the photoelectric sensing switch, the detention pin is protruded.
As a further scheme of the invention, the upper line lifting platform on the upper line of the unipolar plate has two positions, one position is parallel to the first layer of speed multiplying chain, the other position is parallel to the third layer of speed multiplying chain, and transmission belts are arranged on two sides of the upper line lifting platform.
As a further scheme of the invention, the positioning of the positioning device wire feeding tray in the monopolar plate wire feeding process is realized by two positioning pins arranged on the diagonal line.
As a further scheme of the invention, the transfer lifting platform in the hydrogen-oxygen electrode plate welding process is provided with two positions, wherein one position is parallel to the first layer of speed-multiplying chain, the other position is parallel to the third layer of speed-multiplying chain, the two sides of the transfer lifting platform are provided with transmission belts, and the positioning device of the transfer lifting platform is arranged in the middle of the two transmission belts.
As a further scheme of the invention, the lower wire tray lifting platform in the bipolar plate transferring process has two positions, one position is parallel to the second layer of speed-multiplying chain, the other position is parallel to the third layer of speed-multiplying chain, and transmission belts are arranged on two sides of the upper wire lifting platform.
As a further scheme of the invention, two unqualified product counter conveying stations are arranged on the NG table in the bipolar plate offline process, at most ten unqualified bipolar plates are placed in each station, and when the unqualified bipolar plates are filled in the two stations, a photoelectric signal prompts that welding production is suspended.
As a further scheme of the invention, the feeding table in the bipolar plate offline process is provided with three bipolar plate feeding positions in total, each position is provided with photoelectric induction, and signals are transmitted to an offline manipulator through the photoelectric induction to grab the bipolar plates at the signal positions.
The invention has the beneficial effects that:
1. according to the welding production process of the bipolar plate of the fuel cell, the two unipolar plates of the hydrogen cell are welded from the top line to the bottom line through the photoelectric sensing switch and the three-layer speed-multiplying chain structure, the airtightness is detected, and finally the qualified product subjected to airtightness detection is subjected to the full-automatic production process of the bottom line, so that the whole unipolar plate is subjected to the top line to the bottom line of the bipolar plate without manual intervention, the production efficiency is greatly improved, and the labor intensity and the labor cost of people are reduced.
2. The cooperation of going up line elevating platform and coil of wire tray elevating platform uses, make the three-layer doubly fast chain realize empty tray to unipolar board consignment and then to bipolar plate consignment's realization of three-layer construction, make unipolar board and bipolar plate last conveying on doubly fast chain, and the welding can the multistation side by side, realize that the first layer doubly fast chain transports unwelded oxyhydrogen unipolar board to a plurality of welding stations, the second layer doubly fast chain conveys the bipolar plate tray that the welding was accomplished to the front end that the platform was examined to the gas tightness, the third layer doubly fast chain will empty the tray and flow back to the position of going up the line elevating platform.
3. According to the invention, the suction mechanical hands are arranged at the front end position, the welding position, the tail end position and the air tightness detection line-up position of the speed-multiplying chain, and a plurality of air tightness detection line-down positions, so that the bipolar plates are packaged by the line-down mechanical hands after the welding and air tightness detection processes are completed, and the whole production line is completed by matching a full-automatic mechanical structure with an electrical structure.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the front structure of the overall production line of the present invention.
FIG. 2 is a schematic top view of the overall production line of the present invention.
FIG. 3 is a front view of the front end of the weld line of the present invention.
FIG. 4 is a front view of the tail end of the bonding wire of the present invention.
FIG. 5 is a top view of the tail end of the bonding wire of the present invention.
Reference numerals: the system comprises an on-line lifting platform 1, a first layer speed-multiplying chain 2, a tray 3, an on-line tray positioning 4, a second layer speed-rotating speed-multiplying chain 5, a welding station 6, a third layer speed-multiplying chain 7, an off-line tray lifting platform 8, a transfer lifting platform 9, a manual sampling inspection platform 10, an air tightness inspection platform 11, an air tightness inspection transfer platform 12, an off-line manipulator 13, an NG platform 14 and a material supplementing platform 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention relates to a welding process for bipolar plate of fuel cell, which comprises the steps of feeding a monopolar plate, welding a hydrogen-oxygen plate, transferring the bipolar plate, manually performing a sampling inspection, detecting the air tightness, and feeding the bipolar plate; two unipolar boards of oxyhydrogen are paired on the unipolar board and are placed bipolar plate and transport, and the oxyhydrogen unipolar board welds when arriving polar plate welding station, and the synthetic bipolar plate of oxyhydrogen unipolar board after the welding transfers bipolar plate again and transports in, and bipolar plate transports and sends bipolar plate to artifical spot check station and gas tightness detection station, and the bipolar plate that detects through the gas tightness rolls off the production line position at bipolar plate and packs, and concrete process flow is as follows:
and (3) single-pole plate line feeding: the on-line lifting platform 1 transfers two empty trays 3 from a third layer speed doubling chain 7 to a first layer speed doubling chain 2 side by side through the lifting action, the trays 3 are transmitted to the position of an on-line tray positioning 4 through the static friction action of a transmission chain, the on-line lifting platform 1 is lowered to the position of the third layer speed doubling chain 7 at the bottom layer, the empty trays 3 are continuously transferred to the first layer speed doubling chain 2, when the trays 3 are moved to the position of the on-line tray positioning 4, the detention pin is controlled by the photoelectric sensing switch to stay above the upper line tray positioning 4, the upper line tray positioning 4 is lifted upwards to pass through the positioning pin positioning tray 3, the upper line manipulator pairs and grasps the oxygen electrode unipolar plate and the hydrogen electrode unipolar plate, the oxygen electrode unipolar plate is firstly placed above the tray 3, the hydrogen electrode unipolar plate is then placed above the oxygen electrode unipolar plate by the upper line manipulator, when the two trays 3 are placed in sequence, the upper line tray positioning 4 lowers the trays 3 to fall on the first layer of speed multiplying chain 2 and convey the trays to the welding station; the on-line lifting platform 1 can transfer the empty tray 3 returned by the third layer of speed multiplying chain 7 to the first layer of speed multiplying chain 2 to complete the circulating action, and the position of the empty tray 3 is fixed by the positioning action of the on-line tray positioning 4, so that the empty tray is matched with the grabbing and placing parameters set by the manipulator to complete the accurate position placement.
Welding a hydrogen-oxygen polar plate: the tray 3 conveys two matched oxyhydrogen unipolar plates to a welding station 6, a roller vertical to the direction of a double-speed chain transmission is controlled to rise through photoelectric induction, the roller conveys the tray 3 to a transfer lifting table 9, the transfer lifting table 9 raises and fixes the position of the tray 3, a welding manipulator firstly scans and captures the upper-layer hydrogen unipolar plate through a lifting signal of the lifting table, the manipulator rotates 180 degrees to capture the oxygen unipolar plate and horizontally translates to an original point position, scans and captures the lower part of the oxygen unipolar plate, then the oxygen unipolar plate is firstly placed on a welding table through the rotation of the manipulator, the manipulator rotates 180 degrees to place the hydrogen unipolar plate above the oxygen unipolar plate, the manipulator moves back to the original point position, and a welding head welds the two oxyhydrogen unipolar plates into a bipolar plate; move and carry elevating platform and make tray 3 remove to the welding preparation stage through cooperating with the gyro wheel, welding machines hand makes two mated unipolar plates can snatch respectively and remove to the welding bench through two snatch the sucking disc.
Transferring the bipolar plate: a welding manipulator grabs the welded bipolar plate and moves the welded bipolar plate again to be placed on an empty tray 3 on a transplanting lifter, a transfer lifting table 9 lowers the bipolar plate tray 3 to a position parallel to a second layer of speed-multiplying chain 5, a transfer lifting table 9 conveying belt and a roller on the second layer of speed-multiplying chain 5 are matched to move the tray 3 to the second layer of speed-multiplying chain 5, the bipolar plate tray 3 is repositioned at the tail end of the second layer of speed-multiplying chain 5, the bipolar plate leaves the second layer of speed-multiplying chain 5 through the manipulator clamp when the tray 3 is positioned, the tray 3 lowers the empty tray 3 onto a third layer of speed-multiplying chain 7 through a tray lower lifting table 8 at the tail end of the second layer of speed-multiplying chain 5, and the tray 3 is conveyed back to the position of an upper line lifting table 1 through the straight line of the third layer of speed-multiplying chain 7; the transfer of the bipolar plate realizes the reciprocating circulation function of the pallet 3, the empty pallet 3 of the on-line lifting platform 1 is conveyed to the unipolar plate on the first layer of speed-multiplying chain 2, then the bipolar plate is conveyed to the second layer of speed-multiplying chain 5, and finally the empty pallet 3 is recycled on the third layer of speed-multiplying chain 7.
Manual sampling inspection: the side edge of the tail end of the second layer of speed-multiplying chain 5 is provided with a manual sampling inspection table 10 which is perpendicular to the second layer of speed-multiplying chain 5 and is on the same plane with the second layer of speed-multiplying chain 5, the manual sampling inspection table 10 selects a tray 3 where any bipolar plate on the second layer of speed-multiplying chain 5 is located through a sampling inspection control button at one end, and the tray 3 is vertically conveyed through the mutual matching of a roller and the manual sampling inspection table 10; the manual sampling inspection can be used for inspecting the welding surface of the bipolar plate through any selection, so that the quality defect of batch in the air tightness detection process is avoided.
And (3) air tightness detection: the bipolar plates position the two trays 3 for the second time through the secondary positioning of the tail end of the second layer of speed-multiplying chain 5, the two bipolar plates are transplanted to the air tightness detection transfer table 12 through the transfer manipulator, the transfer manipulator combines the four bipolar plates into one group through the two transfers, and the air tightness detection line-feeding manipulator transfers the four bipolar plates into the air tightness detection table 11; every two bipolar plates after positioning are moved to the air tightness detection transfer table together, when four bipolar plates are formed into a group, air tightness detection is carried out, detection efficiency is improved, single air tightness detection is matched with a plurality of welding stations, and seamless connection is completed.
And (3) inserting the bipolar plate into a line: the gas tightness detection table 11 transmits the detection result to the offline manipulator 13, the offline manipulator 13 transfers unqualified bipolar plates to the NG table 14, ten bipolar plates are stacked on the NG table 14 as a group, the qualified bipolar plates in four bipolar plates are transferred to the material supplementing table 15, the material supplementing table 15 calculates the next group of four bipolar plates through logic operation to match the number of the bipolar plates on the material supplementing table 15, and the offline manipulator grabs the bipolar plates on the material supplementing table 15 and transfers the bipolar plates to the bipolar plate transfer box when the four bipolar plates are paired into a group; the material supplementing platform and the NG platform are matched to distinguish qualified products from unqualified products through the bipolar plates subjected to air tightness detection, and the bipolar plates are boxed after being subjected to off-line action completion of less than four bipolar plates through the logic relation of at most three bipolar plates of the material supplementing platform, so that each layer of the boxed bipolar plates is in a group of four, and loss is avoided.
The positioning position of the tray 3 on the first layer of speed multiplying chain 2 and the position of the first layer of speed multiplying chain 2 above the roller are both provided with a detention pin controlled by a photoelectric sensing switch, the detention pin is always contracted, when the tray 3 reaches the position of the photoelectric sensing switch, the detention pin is convex, so that the tray 3 and the first layer of speed multiplying chain 2 generate relative movement, and the tray 3 does not move on the first layer of speed multiplying chain 2.
The upper line lifting platform 1 in the upper line of the unipolar plate is provided with two positions, one position is parallel to the first layer of speed-multiplying chain 2, the other position is parallel to the third layer of speed-multiplying chain 7, and transmission belts are arranged on two sides of the upper line lifting platform 1.
The positioning device of the unipolar plate on-line process on-line tray positioning 4 finishes the positioning effect on the tray 3 through two positioning pins arranged on the diagonal line at the bottom.
The transfer lifting platform 9 in the oxyhydrogen pole plate welding process is provided with two positions, one position is parallel to the first layer of speed-multiplying chain 2, the other position is parallel to the third layer of speed-multiplying chain 7, transmission belts are arranged on two sides of the transfer lifting platform 9, and a positioning device of the transfer lifting platform 9 is arranged in the middle of the two transmission belts.
The lower coil tray lifting platform 8 in the bipolar plate transfer has two positions, one position is parallel to the second layer of speed-multiplying chain 5, the other position is parallel to the third layer of speed-multiplying chain 7, and transmission belts are arranged on two sides of the upper coil lifting platform 1.
In the bipolar plate offline process, two unqualified product conveying stations are arranged on the NG table 14, at most ten unqualified bipolar plates are placed at each station, and when the unqualified bipolar plates are filled in the two stations, a photoelectric signal prompts that welding production is suspended; NG platform carries out NG protection to welding production line, and two stations are filled with unqualified product and when not clearing up, send the warning and pause welding production, treat that NG bench two stations when all clearing up, resume the production operation again, two stations can be respectively to one section unqualified bipolar plate of conveying of NG platform, the manual work in time of being convenient for clearance.
In the bipolar plate offline process, three bipolar plate feeding positions are arranged on the feeding table 15, each position is provided with photoelectric induction, signals are transmitted to the offline manipulator 13 through the photoelectric induction, and the bipolar plates at the signal positions are grabbed.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (8)
1. A welding production process of a fuel cell bipolar plate is characterized by comprising the steps of feeding a monopolar plate, welding a hydrogen-oxygen polar plate, transferring the bipolar plate, manually performing sampling inspection, detecting air tightness and feeding the bipolar plate; two unipolar boards of oxyhydrogen are paired on the unipolar board and are placed bipolar plate and transport, and the oxyhydrogen unipolar board welds when arriving polar plate welding station, and the synthetic bipolar plate of oxyhydrogen unipolar board after the welding transfers bipolar plate again and transports in, and bipolar plate transports and sends bipolar plate to artifical spot check station and gas tightness detection station, and the bipolar plate that detects through the gas tightness rolls off the production line position at bipolar plate and packs, and concrete process flow is as follows:
and (3) single-pole plate line feeding: an upper wire lifting platform (1) moves two empty trays (3) from a third layer of speed doubling chain (7) to a first layer of speed doubling chain (2) side by side through the lifting action, the trays (3) are conveyed to an upper wire tray positioning (4) position through the static friction action of a transmission chain, the upper wire lifting platform (1) is lowered to the position of the bottom layer of third layer of speed doubling chain (7), the empty trays (3) are continuously conveyed to the first layer of speed doubling chain (2), when the trays (3) are moved to the position of the upper wire tray positioning (4), a detention pin is controlled to stay above the upper wire tray positioning (4) through photoelectric induction, the upper wire tray positioning (4) is lifted upwards to pass through the positioning pin positioning tray (3), an upper wire manipulator pairs and grabs an oxygen unipolar plate and a hydrogen unipolar plate, the oxygen unipolar plate is firstly placed above the unipolar plate (3), and the upper wire manipulator places the hydrogen plate above the oxygen plate, when the two trays (3) are placed in sequence, the upper-line tray positioning (4) lowers the trays (3) to fall on the first layer of speed doubling chain (2) and transmits the trays to the welding station (6);
welding a hydrogen-oxygen polar plate: the welding method comprises the following steps that two matched hydrogen-oxygen unipolar plates are conveyed to a welding station by a tray (3), a roller vertical to the direction of a double-speed chain transmission is controlled to rise through photoelectric induction, the roller conveys the tray (3) to a transfer lifting table (9), the transfer lifting table (9) raises the position of a fixed tray (3), a welding manipulator firstly scans and then grasps an upper hydrogen unipolar plate through a signal raised by the lifting table, the manipulator rotates 180 degrees to grasp the oxygen unipolar plate and horizontally translates to an original point position, scans and then scans and marks the lower part of the oxygen unipolar plate, the oxygen unipolar plate is firstly placed on the welding table through the rotation of the manipulator, the manipulator rotates 180 degrees to place the hydrogen unipolar plate above the oxygen unipolar plate, the manipulator moves back to the original point position, and the two welding heads weld the hydrogen-oxygen unipolar plate into a bipolar plate;
transferring the bipolar plate: the welding manipulator grabs the welded bipolar plate and moves the welded bipolar plate again to be placed on an empty tray (3) on the transplanting lifter, a transfer lifting table (9) lowers the bipolar plate tray (3) to the parallel position of a second layer of speed-multiplying chain (5), a transfer belt of the transfer lifting table (9) is matched with a roller on the second layer of speed-multiplying chain (5) to move the tray (3) to the second layer of speed-multiplying chain (5), the bipolar plate tray (3) is repositioned at the tail end of the second layer of speed-multiplying chain (5), the bipolar plate is clamped by the manipulator to leave the second layer of speed-multiplying chain (5) when the tray (3) is positioned, the tray (3) lowers the empty tray (3) to a third layer of speed-multiplying chain (7) through an off-line tray lifting table (8) at the tail end of the second layer of speed-multiplying chain (5), and the tray (3) is conveyed to the on-line position of the lifting table (1) through a straight line of the third layer of speed-multiplying chain (7);
manual sampling inspection: the side edge of the tail end of the second layer of speed-multiplying chain (5) is provided with an artificial sampling inspection table (10) which is perpendicular to the second layer of speed-multiplying chain (5) and is on the same plane with the second layer of speed-multiplying chain (5), the artificial sampling inspection table (10) selects a tray (3) where any bipolar plate on the second layer of speed-multiplying chain (5) is located through a sampling inspection control button at one end, and the tray (3) is vertically conveyed through the mutual matching of a roller and the artificial sampling inspection table (10);
and (3) air tightness detection: the bipolar plates position the two trays (3) for the second time through the secondary positioning of the tail end of the second layer of speed-multiplying chain (5), the two bipolar plates are transplanted to the air tightness detection transfer table (12) through the transfer manipulator, the transfer manipulator forms a group of four bipolar plates through the two transfers, and the air tightness detection line-feeding manipulator transfers the four bipolar plates in the group to the air tightness detection table (11);
and (3) inserting the bipolar plate into a line: the gas tightness detects platform (11) and transmits the testing result for offline manipulator (13), offline manipulator (13) will unqualified bipolar plate move to NG platform (14) on, it piles up as a set of with ten bipolar plates on NG platform (14), qualified bipolar plate moves to on material supplementing platform (15) in the four pieces, material supplementing platform (15) carry out the operation and the material supplementing platform (15) on four pieces of bipolar plate quantity match through the logic operation to next set of four pieces of bipolar plate, the offline manipulator snatchs the bipolar plate on material supplementing platform (15) when pairing into four a set of, move to in the bipolar plate transfer box.
2. The welding production process of the fuel cell bipolar plate as claimed in claim 1, wherein a detention pin controlled by a photoelectric sensing switch is arranged at the position of the tray (3) on the first layer of speed doubling chain (2) and at the position of the first layer of speed doubling chain (2) above the roller, the detention pin is normally contracted, and when the tray (3) reaches the position of the photoelectric sensing switch, the detention pin is raised.
3. The welding production process of the fuel cell bipolar plate is characterized in that the upper line lifting platform (1) in the upper line of the unipolar plate has two positions, one position is parallel to the first layer of speed doubling chains (2), the other position is parallel to the third layer of speed doubling chains (7), and transmission belts are arranged on two sides of the upper line lifting platform (1).
4. The welding production process of the fuel cell bipolar plate according to claim 1, wherein the positioning of the wire tray (4) on the positioning device in the wire-on-plate process of the unipolar plate is realized by two positioning pins arranged on the diagonal line, so that the positioning effect on the tray (3) is realized.
5. The welding production process of the fuel cell bipolar plate according to claim 1, wherein the transfer lifting platform (9) in the hydrogen-oxygen polar plate welding process has two positions, one position is parallel to the first layer of the double-speed chain (2), the other position is parallel to the third layer of the double-speed chain (7), transmission belts are arranged on two sides of the transfer lifting platform (9), and a positioning device of the transfer lifting platform (9) is arranged in the middle of the two transmission belts.
6. The welding production process of the fuel cell bipolar plate according to claim 1, wherein the lower wire tray lifting platform (8) in the bipolar plate transportation has two positions, one position is parallel to the second layer of the speed-multiplying chain (5), the other position is parallel to the third layer of the speed-multiplying chain (7), and transmission belts are arranged on two sides of the upper wire lifting platform (1).
7. The welding production process of the fuel cell bipolar plate as claimed in claim 1, wherein two unqualified product counter conveying stations are arranged on the NG table (14) in the bipolar plate off-line process, each station is used for placing at most ten unqualified bipolar plates, and when the unqualified bipolar plates are filled in the two stations, the photoelectric signal prompts the welding production to be suspended.
8. The welding production process of the fuel cell bipolar plate according to claim 1, wherein a total of three bipolar plate feeding positions are arranged on the feeding table (15) in the bipolar plate off-line process, each position is provided with photoelectric induction, and signals are transmitted to an off-line manipulator (13) through the photoelectric induction to grab the bipolar plate at the signal position.
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| CN110802320A (en) * | 2019-11-25 | 2020-02-18 | 无锡先导智能装备股份有限公司 | Bipolar plate production line |
| CN110957515B (en) * | 2019-11-29 | 2024-06-07 | 魔方氢能源科技(江苏)有限公司 | Automatic fuel cell stacking system |
| CN111618433B (en) * | 2020-05-19 | 2022-02-11 | 中山市镭通激光科技有限公司 | Full-automatic cutting and welding system for bipolar plate battery |
| CN111805118B (en) * | 2020-09-04 | 2021-03-02 | 爱德曼氢能源装备有限公司 | Automatic positioning welding device for bipolar plate of fuel cell |
| CN112589314B (en) * | 2021-03-04 | 2021-06-15 | 武汉华工激光工程有限责任公司 | Automatic welding production line and welding method for fuel cell bipolar plate |
| CN115647683B (en) * | 2022-12-14 | 2023-03-28 | 适新科技（苏州）有限公司 | High efficiency fuel cell bipolar plate welding apparatus for producing |
| CN115591995A (en) * | 2022-12-14 | 2023-01-13 | 佛山市清极能源科技有限公司（Cn） | Production stamping system and method for fuel cell bipolar plate |
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Denomination of invention: A production process for welding bipolar plates in fuel cells Effective date of registration: 20231120 Granted publication date: 20201211 Pledgee: Huaxia Bank Co.,Ltd. Hefei Mount Huangshan Road Sub branch Pledgor: MINGTIAN HYDROGEN ENERGY TECHNOLOGY Co.,Ltd. Registration number: Y2023980066449 |