CN115441003A

CN115441003A - Production equipment of fuel cell stack

Info

Publication number: CN115441003A
Application number: CN202211060905.9A
Authority: CN
Inventors: 刘元宇; 陆维; 王晓雪; 杨琛; 史林军; 曾靖权; 丁瑞
Original assignee: Spic Hydrogen Energy Technology Development Co Ltd
Current assignee: Spic Hydrogen Energy Technology Development Co Ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-12-06

Abstract

The invention provides a production device of a fuel cell stack, which comprises: the first conveying device is provided with a feeding end and a discharging end and is used for conveying the first jig; a first feeding device; a second feeding device; a first transfer robot; the second screen printing device imprints a second glue layer on the second sealing gasket substrate to obtain a second sealing gasket structure; and the second transfer manipulator is movably arranged between the third conveying device and the first conveying device, and the reverse side of the single-sided gasket bipolar plate is bonded with the second sealing gasket structure through the second transfer manipulator to obtain a double-sided gasket bipolar plate, wherein the reverse side of the single-sided gasket bipolar plate is the surface of the single-sided gasket bipolar plate which is not provided with the first sealing gasket structure. The technical scheme of the application effectively solves the problems of poor process precision and low production efficiency of a mode of manually bonding the fuel cell bipolar plate and the sealing gasket in the related technology.

Description

Production equipment of fuel cell stack

Technical Field

The invention relates to the field of fuel cell manufacturing, in particular to production equipment of a fuel cell stack.

Background

The fuel cell stack is formed by stacking a plurality of single cells consisting of bipolar plates and membrane electrodes, so that the high-power output of the fuel cell stack is realized. The single battery comprises a hydrogen gas cavity, an air cavity and a cooling liquid cavity, and the sealing of the hydrogen gas cavity, the air cavity and the cooling liquid cavity in the fuel cell stack is of great importance in order to ensure the normal operation of the fuel cell stack. The cooling liquid cavity in the fuel cell bipolar plate is generally sealed by welding, and the hydrogen cavity and the air cavity are generally sealed by adopting a bonding sealing gasket. The sealing gasket in the existing fuel cell stack mainly adopts fluororubber, silicon rubber and EPDM (ethylene propylene diene monomer), and the bonding mode of the common sealing gasket is that a glue sprayer sprays damp-heat curing glue with the polarity similar to that of the sealing gasket in a sealing groove of a bipolar plate, then the sealing gasket is manually placed in the sealing groove, and finally the damp-heat curing is carried out.

The method for manually bonding the fuel cell bipolar plate and the sealing gasket has poor process precision and low production efficiency, and cannot meet the requirement of high sealing reliability of a fuel cell stack and the requirement of batch production.

Disclosure of Invention

The invention mainly aims to provide production equipment of a fuel cell stack, which aims to solve the problems of poor process precision and low production efficiency in a mode of manually bonding a fuel cell bipolar plate and a sealing gasket in the related technology.

In order to achieve the above object, the present invention provides a production apparatus of a fuel cell stack, comprising: the first conveying device is provided with a feeding end and a discharging end and is used for conveying the first jig; the first feeding device is positioned on one side of the feeding end of the first conveying device and used for transferring the bipolar plate substrate to the upper part of the first jig; the second feeding device is arranged on one side of the first conveying device and located at the downstream of the first feeding device, the second feeding device comprises a second conveying device and a first screen printing device arranged on one side of the second conveying device, the second conveying device is used for conveying the first sealing gasket base body, and the first screen printing device imprints the first adhesive layer on the first sealing gasket base body to obtain a first sealing gasket structure; the first transfer manipulator is movably arranged between the second conveying device and the first conveying device, and the front surface of the bipolar plate substrate is bonded with the first sealing gasket structure through the first transfer manipulator to obtain a single-sided gasket bipolar plate; the first turnover device is arranged above the first conveying device and positioned at the downstream of the first transfer manipulator, the first turnover device turns the front side of the single-sided gasket bipolar plate downwards to the front side of the single-sided gasket bipolar plate upwards, and the front side of the single-sided gasket bipolar plate is the surface of the single-sided gasket bipolar plate with a first sealing gasket structure; the third feeding device is arranged on one side of the first conveying device and is positioned at the downstream of the first overturning device, the third feeding device comprises a third conveying device and a second screen printing device arranged on one side of the third conveying device, the third conveying device is used for conveying a second sealing gasket base body, and the second screen printing device imprints a second glue layer on the second sealing gasket base body to obtain a second sealing gasket structure; and the second transfer manipulator is movably arranged between the third conveying device and the first conveying device, and the reverse side of the single-sided gasket bipolar plate is bonded with the second sealing gasket structure through the second transfer manipulator so as to obtain the double-sided gasket bipolar plate, wherein the reverse side of the single-sided gasket bipolar plate is the surface of the single-sided gasket bipolar plate which is not provided with the first sealing gasket structure.

Furthermore, the second feeding device also comprises a second jig for bearing the first sealing gasket base body, the second conveying device is used for conveying the second jig loaded with the second sealing gasket base body, the first screen printing device comprises a rack, a jig grabbing and separating mechanism, a screen printing platform, a CCD scanner and a visual detection device, the jig grabbing and separating mechanism is arranged on the rack in a lifting mode and is located above the second conveying device, the screen printing platform is movably arranged on the jig grabbing and separating mechanism, the CCD scanner is arranged on the screen printing platform, and the visual detection device is movably arranged above the second conveying device; the jig grabbing and separating mechanism is provided with a grabbing and separating position for grabbing and separating the second jig from the second conveying device and a first placing position for placing the second jig above the second conveying device, and the screen printing platform imprints the first glue layer on the first sealing gasket substrate in the second jig; the second feeding device further comprises a lifting device arranged on the other side of the first conveying device, the first overturning device is located at the downstream of the lifting device, and the lifting device is provided with a lifting position for lifting the first jig on the first conveying device away from the first conveying device and a second placing position for placing the first jig on the first conveying device; the production equipment of the fuel cell pile further comprises a first discharging device arranged on one side of the second conveying device and a jig transferring mechanism arranged above the second conveying device and the first discharging device, the jig transferring mechanism is used for transferring a second jig which is provided with a first sealing gasket structure and arranged on the second conveying device to the first discharging device, and the first transferring mechanical arm presses the bipolar plate substrate in the first jig on the lifting device to be above the first sealing gasket structure in the second jig on the first discharging device so as to bond the front face of the bipolar plate substrate and the first sealing gasket structure together.

Further, the jig transferring mechanism comprises a guide rail arranged above the second conveying device and the first discharging device, a transferring arm movably arranged on the guide rail, a first telescopic cylinder arranged at the end part of the transferring arm and a first sucker arranged at a telescopic part of the first telescopic cylinder; the second tool includes first bottom plate, interval setting at first bottom plate a plurality of first poles setting all around and sets up the jacking device in first bottom plate top, and first sealed gasket base member is all worn to locate by every first pole setting, and the jacking device can support in first sealed gasket base member.

Furthermore, the production equipment of the fuel cell stack also comprises a front curing device and a back curing device, wherein the front curing device is positioned between the first turnover device and the third feeding device, the front curing device is covered above the first conveying device, a front curing space for curing the bonding part on the single-sided gasket bipolar plate is arranged in the front curing device, and the first conveying device conveys the single-sided gasket bipolar plate to obtain the single-sided gasket bipolar plate with the front cured after being cured through the front curing space; the reverse side curing device is positioned at the downstream of the second transfer manipulator, the reverse side curing device covers the first conveying device, a reverse side curing space for curing the bonding position on the double-sided gasket bipolar plate is arranged in the reverse side curing device, and the first conveying device conveys the double-sided gasket bipolar plate to obtain the double-sided gasket bipolar plate with the reverse side cured after the double-sided gasket bipolar plate is cured in the reverse side curing space.

Further, the front curing device comprises a light curing machine, a first lifting device and a second lifting device, wherein the first lifting device and the second lifting device are respectively positioned at the upstream and the downstream of the light curing machine; the plurality of fourth conveying devices are arranged at intervals up and down, a first interlayer is formed between the fourth conveying device positioned at the lowest position and part of the first conveying devices, a second interlayer is formed between two adjacent fourth conveying devices, a third interlayer is formed between the fourth conveying device positioned at the uppermost position and the top wall of the lampshade, the first interlayer, the second interlayer and the third interlayer jointly form a front curing space, and the first lifting device and the second lifting device can be lifted to a position corresponding to the position of the first interlayer, a position corresponding to the position of the second interlayer and a position corresponding to the position of the third interlayer; the first lifting device and the second lifting device respectively comprise a first support located on one side of the first conveying device, a first supporting plate arranged on the first support in a vertically movable mode and a fifth conveying device arranged on the first supporting plate, and the conveying direction of the fifth conveying device is consistent with the conveying direction of the first conveying device.

Furthermore, the production equipment of the fuel cell stack also comprises a second turnover device arranged above the first conveying device, the second turnover device is positioned between the second transfer manipulator and the reverse side curing device, the second turnover device turns the reverse side of the double-sided gasket bipolar plate substrate with the cured reverse side downwards to the reverse side of the double-sided gasket bipolar plate substrate with the cured reverse side upwards, and the reverse side of the double-sided gasket bipolar plate substrate is the surface of the double-sided gasket bipolar plate with a second sealing gasket structure; the first turnover device and the second turnover device respectively comprise a second telescopic cylinder and a third telescopic cylinder which are arranged at two sides of the first conveying device at intervals, and the second telescopic cylinder and the third telescopic cylinder are both arranged in a telescopic manner along the vertical direction; the first turnover device and the second turnover device both comprise a driving shaft which is rotatably provided with a telescopic part of the second telescopic cylinder and a telescopic part of the third telescopic cylinder, and a second sucker which is arranged on the circumferential outer side of the driving shaft, wherein the second sucker is positioned between the second telescopic cylinder and the third telescopic cylinder, and the driving shaft drives the second sucker to rotate so that a suction nozzle of the second sucker has a first grabbing position facing upward and a second grabbing position facing downward.

Furthermore, the first feeding device comprises a first feeding conveying device and a first carrier used for conveying by the first feeding conveying device, a plurality of bipolar plate substrates are arranged in the first carrier, and the first feeding device further comprises a third transfer manipulator which places the bipolar plate substrate positioned at the top in the first carrier above the first jig on the first conveying device; the first carrier comprises a second base plate, a plurality of second vertical rods arranged around the second base plate at intervals and a third lifting device arranged above the second base plate, each first vertical rod penetrates through the bipolar plate substrates, and the third lifting device is supported on the bipolar plate substrate positioned at the lowest position in the bipolar plate substrates.

Furthermore, the number of the first carriers is multiple, the production equipment of the fuel cell stack further comprises a second blanking device and a first transfer device, the second blanking device is arranged on one side of the first feeding device, the first transfer device corresponds to the discharge end of the first feeding device and the feed end of the second blanking device, the second blanking device comprises a first blanking conveying device, the first transfer device comprises a first transfer conveying device, and the first transfer conveying device is used for transferring the first carriers conveyed by the first feeding conveying device to the upper side of the first blanking conveying device; the first feeding device further comprises a plurality of first separation papers, one first separation paper is placed between every two adjacent bipolar plate substrates, the production equipment of the fuel cell stack further comprises a first separation paper transfer device arranged above the first feeding device and the second blanking device, the first separation paper transfer device comprises a first vertical beam, a second vertical beam, a cross beam, a fourth telescopic cylinder, a synchronous belt and a third sucking disc, the first vertical beam and the second vertical beam are located on two sides of the first feeding device and the second blanking device, the cross beam is connected to the top of the first vertical beam and the top of the second vertical beam, the fourth telescopic cylinder is movably arranged on the cross beam through the synchronous belt, the third sucking disc is arranged on a telescopic portion of the fourth cylinder, and the third sucking disc can transfer the first separation paper in the first carrier on the first feeding conveying device into the first carrier on the first blanking conveying device.

Furthermore, the production equipment of the fuel cell stack further comprises a fourth lifting device and an air tightness detection device which are positioned at the downstream of the reverse solidification device, the fourth lifting device and the air tightness detection device are respectively arranged at two sides of the first conveying device, the fourth lifting device comprises a second support arranged at one side of the first conveying device and a second supporting plate arranged on the second support in a lifting manner, and the second supporting plate can be inserted into the fracture of the first conveying device; the air tightness detection device comprises a third support, a lower die, an upper die, a rotating arm, a fourth sucker and a fifth sucker, wherein the third support is arranged on the other side of the first conveying device, the lower die and the upper die are arranged on the third support at intervals, the upper die is movably arranged on the third support relative to the lower die, the rotating arm is rotatably arranged on the third support, the fourth sucker and the fifth sucker are respectively fixed at two ends of the rotating arm, the fourth sucker is provided with a third grabbing position located above the second supporting plate and a first releasing position located above the lower die, and the fifth sucker is provided with a fourth grabbing position located above the lower die and a second releasing position located above the second supporting plate.

Furthermore, the production equipment of the fuel cell stack further comprises an appearance detection device and a fourth transfer manipulator which are positioned at the downstream of the airtight detection device, the appearance detection device and the fourth transfer manipulator are respectively arranged at two sides of the first conveying device, the appearance detection device comprises a front picture collector and a back picture collector which are positioned at one side of the first conveying device, the fourth transfer manipulator is positioned at the other side of the first conveying device, the back picture collector is positioned at the downstream of the front picture collector, the back picture collector is lower than the front picture collector, the fourth transfer manipulator can grab the double-sided gasket bipolar plate to be collected after the back is solidified, which is conveyed on the first conveying device, to the upside of the back picture collector, and the airtight detection device is used for performing the air tightness detection on the double-sided gasket to be collected after the back is solidified so as to obtain the qualified bipolar plate; the appearance detection device is used for carrying out appearance detection on the qualified bipolar plate to obtain a finished bipolar plate; the production equipment of the fuel cell stack further comprises a fourth feeding device, a third discharging device and a second transfer device, wherein the fourth feeding device, the third discharging device and the second transfer device are positioned on one side of the output end of the first conveying device; the fourth transfer manipulator places the finished bipolar plates in a second carrier above a second transfer conveying device, the production equipment of the fuel cell stack further comprises a second paper separating and transferring device arranged above a fourth feeding device and a third discharging device, a plurality of second paper separating and transferring devices are placed in a part of the second carrier conveyed by the second feeding conveying device, and the second paper separating and transferring devices can transfer the second paper separating in the second carrier on the second feeding conveying device to the upper part of the finished bipolar plates in the second carrier on the second discharging conveying device, so that the finished bipolar plates and the second paper separating in the second carrier are alternately stacked from bottom to top in sequence.

By applying the technical scheme of the invention, the production equipment of the fuel cell stack comprises: first conveyor, first loading attachment, second loading attachment, first transfer manipulator, first turning device, third loading attachment and second transfer manipulator. The first conveying device is provided with a feeding end and a discharging end and is used for conveying the first jig. The first feeding device is located on one side of the feeding end of the first conveying device and transfers the bipolar plate substrate to the upper portion of the first jig. The second feeding device is arranged on one side of the first conveying device and is positioned at the downstream of the first feeding device. The second feeding device comprises a second conveying device and a first screen printing device arranged on one side of the second conveying device. The second conveying device is used for conveying the first sealing gasket base body. The first screen printing device imprints the first adhesive layer on the first gasket base body to obtain a first gasket structure. The first transfer manipulator is movably arranged between the second conveying device and the first conveying device, and the front surface of the bipolar plate substrate is bonded with the first sealing gasket structure through the first transfer manipulator, so that the single-sided gasket bipolar plate is obtained. The first turnover device is arranged above the first conveying device and is positioned at the downstream of the first transfer manipulator. The first turnover device turns the front side of the single-sided gasket bipolar plate downwards to the front side of the single-sided gasket bipolar plate upwards, and the front side of the single-sided gasket bipolar plate is the surface of the single-sided gasket bipolar plate provided with the first sealing gasket structure. The third feeding device is arranged on one side of the first conveying device and is positioned at the downstream of the first turnover device. The third feeding device comprises a third conveying device and a second screen printing device arranged on one side of the third conveying device. The third conveying device is used for conveying the second gasket base body. And the second screen printing device imprints a second glue layer on the second gasket substrate to obtain a second gasket structure. The second transfer manipulator is movably arranged between the third conveying device and the first conveying device. And bonding the reverse side of the single-sided gasket bipolar plate with the second sealing gasket structure through a second transfer manipulator to obtain the double-sided gasket bipolar plate, wherein the reverse side of the single-sided gasket bipolar plate is the surface of the single-sided gasket bipolar plate without the first sealing gasket structure. The production process flow of the production equipment of the fuel cell stack is as follows: the first feeding device transfers the bipolar plate base body to the upper portion of a first jig of the first conveying device, and the first conveying device conveys the first jig carrying the bipolar plate base body to the second feeding device. And a second conveying device of the second feeding device finishes feeding of the first sealing gasket base body, and a first screen printing device of the second feeding device imprints the first glue layer on the first sealing gasket base body to obtain a first sealing gasket structure. The first transfer manipulator bonds the front surface of the bipolar plate substrate with the first sealing gasket structure to obtain the single-sided gasket bipolar plate, and then transfers the single-sided gasket bipolar plate to the first conveying device. The first turnover device turns over the single-sided gasket bipolar plate. And a third conveying device of the third feeding device finishes feeding of the second sealing gasket base body, and a second screen printing device of the third feeding device imprints a second glue layer on the second sealing gasket base body to obtain a second sealing gasket structure. And the second transfer manipulator bonds the overturned single-sided gasket bipolar plate with the second sealing gasket structure together to obtain the double-sided gasket bipolar plate. Therefore, the bonding of the bipolar plate base body with the first sealing gasket base body and the second sealing gasket base body is realized through a series of production process flows of the production equipment of the fuel cell stack, and the process precision and the production efficiency are improved. Therefore, the technical scheme of the application effectively solves the problems of poor process precision and low production efficiency of the mode of manually bonding the fuel cell bipolar plate and the sealing gasket in the related technology.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic perspective view of an embodiment of a production apparatus of a fuel cell stack according to the present invention;

fig. 2 shows a partial enlarged view at a of the production apparatus of the fuel cell stack of fig. 1;

fig. 3 shows a partial enlarged view at B of the production apparatus of the fuel cell stack of fig. 2;

fig. 4 shows a schematic perspective view of a first feeding device, a first paper separation transfer device, a second blanking device and a first transfer device of the production equipment of the fuel cell stack of fig. 1;

fig. 5 is a schematic perspective view showing a second loading device, a jig transfer mechanism, a first transfer robot, and a first unloading device of the production apparatus of the fuel cell stack of fig. 1;

figure 6 shows a schematic perspective view of a front-side solidification device of the production plant of the fuel cell stack of figure 1;

figure 7 shows a cross-sectional view of a front curing device of the production plant of the fuel cell stack of figure 1;

fig. 8 is a perspective view schematically showing the third loading device and the second transfer robot of the production apparatus for a fuel cell stack of fig. 1;

fig. 9 is a schematic perspective view showing a reverse-side solidifying device of the production apparatus of the fuel cell stack of fig. 1;

fig. 10 is a schematic perspective view showing a fourth elevating device and a gas tightness detecting device of the production apparatus of the fuel cell stack of fig. 1;

fig. 11 is a schematic perspective view showing an appearance inspection device, a fourth transfer robot, a fourth feeding device, a second transfer device, a second paper separation transfer device, and a third discharging device of the production apparatus for a fuel cell stack of fig. 1;

fig. 12 is a schematic perspective view showing a first carrier of the production apparatus of the fuel cell stack of fig. 1;

fig. 13 is a schematic perspective view showing a second jig of the production apparatus of the fuel cell stack of fig. 1.

Wherein the figures include the following reference numerals:

11. a first conveying device; 101. a first jig;

12. a first feeding device; 121. a first feeding and conveying device; 122. a first carrier; 1221. a second base plate; 1222. a second upright stanchion; 1223. a third lifting device; 123. a third transfer robot;

13. a first separator transfer device; 131. a first vertical beam; 132. a second vertical beam; 133. a cross beam; 134. a fourth telescoping cylinder; 135. a third suction cup;

14. a second blanking device; 141. a first blanking conveyor;

15. a first transfer device; 151. a first transfer conveyor;

16. a second feeding device; 161. a second conveying device; 162. a first screen printing device; 1621. a frame; 1622. a jig grabbing and separating mechanism; 1623. a screen printing platform; 1624. a CCD scanner; 1625. a visual inspection device; 163. a second jig; 1631. a first base plate; 1632. a first upright stanchion; 1633. a jacking device; 164. a lifting device;

17. a jig transferring mechanism; 171. a guide rail; 172. a transfer arm; 173. a first telescoping cylinder; 174. a first suction cup;

18. a first transfer robot;

19. a first discharging device;

20. a first turning device; 201. a second telescoping cylinder; 202. a third telescopic cylinder; 203. a drive shaft; 204. a second suction cup;

21. a front curing device; 211. a photo-curing machine; 2111. a lamp shade; 2112. a fourth conveying device; 212. a first lifting device; 2121. a first bracket; 2122. a first pallet; 2123. a fifth conveying device; 213. a second lifting device; 214. a front curing space; 2141. a first barrier layer; 2142. a second barrier layer; 2143. a third interlayer;

22. a second turnover device;

23. a third feeding device; 231. a third conveying device; 232. a second screen printing device;

24. a second transfer robot;

25. a reverse side curing device;

26. a fourth lifting device; 261. a second bracket; 262. a second pallet;

27. an air-tightness detecting device; 271. a third support; 272. a lower die; 273. an upper die; 274. a rotating arm; 275. a fourth suction cup; 276. a fifth suction cup;

28. an appearance detection device; 281. a front picture collector; 282. a reverse side picture collector;

29. a fourth transfer robot;

30. a fourth feeding device; 301. a second feeding and conveying device; 302. a second carrier;

31. a second transfer device; 311. a second transfer conveyor;

32. a second separation paper transfer device;

33. a third blanking device; 331. and the second blanking conveying device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

As shown in fig. 1 to 5, the production apparatus of the fuel cell stack of the present embodiment includes: the device comprises a first conveying device 11, a first feeding device 12, a second feeding device 16, a first transfer manipulator 18, a first turnover device 20, a third feeding device 23 and a second transfer manipulator 24. The first conveying device 11 has a feeding end and a discharging end, and the first conveying device 11 is used for conveying the first jig 101. The first feeding device 12 is located at one side of the feeding end of the first conveying device 11, and the first feeding device 12 transfers the bipolar plate substrate to the upper side of the first jig 101. The second feeding device 16 is disposed on one side of the first conveying device 11, and is located downstream of the first feeding device 12. The second feeding device 16 includes a second conveyance device 161 and a first screen printing device 162 provided on one side of the second conveyance device 161. The second conveying device 161 is used for conveying the first gasket base body. The first screen printing apparatus 162 imprints a first layer of adhesive onto the first gasket substrate to obtain a first gasket configuration. The first transfer robot 18 is movably arranged between the second conveyor 161 and the first conveyor 11, and the front side of the bipolar plate substrate is bonded to the first sealing gasket structure by the first transfer robot 18 to obtain a single-sided gasket bipolar plate. The first flipping device 20 is disposed above the first conveyor 11 and downstream of the first transfer robot 18. The first turnover device 20 turns the front side of the single-sided gasket bipolar plate downwards to the front side of the single-sided gasket bipolar plate upwards, and the front side of the single-sided gasket bipolar plate is the surface of the single-sided gasket bipolar plate provided with the first sealing gasket structure. The third feeding device 23 is disposed at one side of the first conveying device 11 and downstream of the first flipping device 20. The third feeding device 23 includes a third conveying device 231 and a second screen printing device 232 provided on one side of the third conveying device 231. The third conveying device 231 is used for conveying the second gasket base body. The second screen printing device 232 imprints a second layer of adhesive onto the second gasket substrate to obtain a second gasket configuration. The second transfer robot 24 is movably disposed between the third conveyor 231 and the first conveyor 11. The reverse side of the single-sided gasket bipolar plate is bonded with the second sealing gasket structure through a second transfer manipulator 24 to obtain the double-sided gasket bipolar plate, and the reverse side of the single-sided gasket bipolar plate is the surface of the single-sided gasket bipolar plate which is not provided with the first sealing gasket structure.

By applying the technical scheme of the embodiment, the production equipment of the fuel cell stack comprises: the device comprises a first conveying device 11, a first feeding device 12, a second feeding device 16, a first transfer manipulator 18, a first turnover device 20, a third feeding device 23 and a second transfer manipulator 24. The first conveying device 11 has a feeding end and a discharging end, and the first conveying device 11 is used for conveying the first jig 101. The first feeding device 12 is located at one side of the feeding end of the first conveying device 11, and the first feeding device 12 transfers the bipolar plate substrate to the upper side of the first jig 101. The second feeding device 16 is disposed on one side of the first conveying device 11, and downstream of the first feeding device 12. The second feeding device 16 includes a second conveyance device 161 and a first screen printing device 162 provided on one side of the second conveyance device 161. The second conveying device 161 is used for conveying the first gasket base body. The first screen printing apparatus 162 imprints a first layer of adhesive onto the first gasket substrate to obtain a first gasket configuration. The first transferring robot 18 is movably arranged between the second conveyor 161 and the first conveyor 11, and the front side of the bipolar plate substrate is bonded with the first sealing gasket structure by the first transferring robot 18, so as to obtain a single-sided gasket bipolar plate. The first flipping unit 20 is disposed above the first conveyor 11 and downstream of the first transfer robot 18. The first turnover device 20 turns the front side of the single-sided gasket bipolar plate downwards to the front side of the single-sided gasket bipolar plate upwards, and the front side of the single-sided gasket bipolar plate is the surface of the single-sided gasket bipolar plate provided with the first sealing gasket structure. The third feeding device 23 is disposed at one side of the first conveying device 11 and downstream of the first flipping device 20. The third feeding device 23 includes a third conveying device 231 and a second screen printing device 232 provided on one side of the third conveying device 231. The third conveying device 231 is used for conveying the second gasket base body. The second screen printing device 232 imprints a second layer of adhesive on the second gasket substrate to obtain a second gasket seal configuration. The second transfer robot 24 is movably disposed between the third conveyor 231 and the first conveyor 11. The reverse side of the single-sided gasket bipolar plate is bonded with the second sealing gasket structure through a second transfer manipulator 24 to obtain the double-sided gasket bipolar plate, and the reverse side of the single-sided gasket bipolar plate is the surface of the single-sided gasket bipolar plate which is not provided with the first sealing gasket structure. The production process flow of the production equipment of the fuel cell stack is as follows: the first feeding device 12 transfers the bipolar plate substrates to the upper side of the first jig 101 of the first conveying device 11, and the first conveying device 11 conveys the first jig 101 carrying the bipolar plate substrates to the second feeding device 16. The second conveying device 161 of the second feeding device 16 completes feeding of the first gasket sheet base, and the first screen printing device 162 of the second feeding device 16 obtains the first gasket structure by imprinting the first adhesive layer on the first gasket sheet base. The first transfer manipulator 18 bonds the front surface of the bipolar plate substrate and the first sealing gasket structure together to obtain a single-sided gasket bipolar plate, and the first transfer manipulator 18 transfers the single-sided gasket bipolar plate to the first conveying device 11. A first flipping mechanism 20 flips the single-sided shim bipolar plate. The third conveyor 231 of the third feeding device 23 finishes feeding the second gasket sheet base, and the second screen printing device 232 of the third feeding device 23 obtains the second gasket structure by imprinting the second adhesive layer on the second gasket sheet base. The second transfer robot 24 bonds the flipped single-sided gasket bipolar plate and the second sealing gasket structure together to obtain a double-sided gasket bipolar plate. Therefore, the bipolar plate base body is bonded with the first sealing gasket base body and the second sealing gasket base body through a series of production process flows of the production equipment of the fuel cell stack, and the process precision and the production efficiency are improved. Therefore, the technical scheme of the embodiment effectively solves the problems of poor process precision and low production efficiency of the mode of manually bonding the fuel cell bipolar plate and the sealing gasket in the related technology.

In this embodiment, the first conveying device 11 includes a conveying support frame, and a driving shaft and a driven shaft which are rotatably and alternately arranged on the conveying support frame. The first conveying device 11 further comprises a first conveying belt sleeved at the first end of the driving shaft and the first end of the driven shaft and a second conveying belt sleeved at the second end of the driving shaft and the second end of the driven shaft. Wherein, the driving shaft drives the first conveyer belt and the second conveyer belt to rotate synchronously.

As shown in fig. 1 to 5, the second feeding device 16 further includes a second jig for carrying the first gasket base. The second conveying device 161 is used for conveying the second jig loaded with the second gasket base body to convey the second gasket base body to the first screen printing device 162. The first screen printing device 162 includes a frame 1621, a jig grasping and separating mechanism 1622, a screen printing platform 1623, a CCD scanner 1624, and a visual detection device. The jig grabbing mechanism 1622 grabs the second jig carrying the second gasket base from the second conveying device 161 for the screen printing operation. CCD scanner 1624 can realize the high accuracy counterpoint, and can discern the deviation of placing of first sealed pad substrate and first glue film rapidly and carry out automatic correction, and first screen printing device 162 is in order to obtain first seal gasket structure on with the UV glue rendition on the first glue film to first sealed pad substrate through the mode of impression after the automatic correction. And the pressure of the embossing can be adjusted as required, and the first adhesive layer can be adjusted according to the size and the process requirements of the first gasket base body. The visual detection device can detect the thickness, the width and the position accuracy of the glue line printed by the first glue layer. The jig grabbing and separating mechanism 1622 is arranged on the frame 1621 and above the second conveying device 161 in a liftable mode, the screen printing platform 1623 is movably arranged on the jig grabbing and separating mechanism 1622, the CCD scanner 1624 is arranged on the screen printing platform 1623, and the visual detection device is movably arranged above the second conveying device 161. The jig catching and releasing mechanism 1622 has a catching and releasing position for catching and releasing the second jig from the second conveying device 161 and a first placing position for placing the second jig above the second conveying device 161. The screen printing platform 1623 imprints the first adhesive layer on the first sealing gasket base body in the second jig. The second feeding device 16 further includes a lifting device 164 provided at the other side of the first conveyor 11. The first flipping means 20 is located downstream of the lifting means 164. The lifting device 164 has a lifting position for lifting the first jig 101 on the first conveyor 11 away from the first conveyor 11 and a second placing position for placing the first jig 101 on the first conveyor 11. The production equipment of the fuel cell stack further comprises a first feeding device 19 arranged on one side of the second conveying device 161 and a jig transferring mechanism 17 arranged above the second conveying device 161 and the first feeding device 19. The jig transferring mechanism 17 is used for transferring the second jig carrying the first sealing gasket structure on the second conveying device 161 to the first blanking device 19. The first transfer robot 18 presses the bipolar plate substrate in the first jig 101 on the lifting device 164 against the first sealing gasket structure in the second jig on the first blanking device 19, so as to bond the front surface of the bipolar plate substrate and the first sealing gasket structure together.

In this embodiment, the first sealing gasket base and the bipolar plate base are bonded by the printing method of the first screen printing device 162, which can more precisely control the width, thickness and position accuracy of the glue lines, and greatly improve the reliability of the sealing process of the bipolar plate, compared with the glue spraying method in the related art.

As shown in fig. 1 to 5 and 13, the jig transfer mechanism 17 includes a guide rail 171 provided above the second conveyor 161 and the first unloader 19, a transfer arm 172 movably provided on the guide rail 171, a first telescopic cylinder 173 provided at an end of the transfer arm 172, and a first suction pad 174 provided at a telescopic portion of the first telescopic cylinder 173. The second tool includes first bottom plate, interval setting at first bottom plate a plurality of first pole settings all around and set up the jacking device 1633 in first bottom plate top, and first sealed gasket base member is all worn to locate by every first pole setting, and jacking device 1633 can support in first sealed gasket base member. The quantity of second tool can be adjusted according to the required time of a production product, adjusts according to the production beat promptly. The second jig can be adjusted according to the shape of the first sealing gasket base body and is used for fixing the position of the first sealing gasket base body. The jacking device 1633 arranged at the bottom of the second jig can prevent the first sealing gasket from being completely separated from the second jig due to the defect of size precision, or insufficient pressure-bearing force or blockage in the second jig, so that the first sealing gasket is prevented from being separated from the second jig, and the fault-tolerant rate and the reliability of the sealing treatment of the bipolar plate are improved.

Note that, in the present embodiment, the second screen printing apparatus 232 has the same structure as the first screen printing apparatus 162. The first jig 101 and the second jig have the same structure, and both the first jig 101 and the second jig include a bipolar plate positioning device. The number of the first jigs 101 may be adjusted according to the time required for producing one product, that is, according to the tact. In this embodiment, when the jig transferring mechanism 17 transfers the second jig carrying the first sealing gasket structure on the second conveying device 161 onto the first blanking device 19, the lifting device 164 lifts the first jig 101 carrying the bipolar plate, and the lifting device 164 is switched from the second placing position to the lifting position. When the lifting device 164 is in the lifting position, the first transfer robot 18 grabs the bipolar plate from the lifting device 164, and transfers the bipolar plate to the top of the first sealing gasket structure in the second fixture on the first blanking device 19. The first transfer manipulator 18 further comprises a CCD scanner 1624, the CCD scanner 1624 can realize high-precision alignment, can quickly identify the placement deviation of the first sealing gasket structure and the bipolar plate and automatically correct the placement deviation, and the position precision of bonding is guaranteed. After the automatic correction is finished, the first transfer manipulator 18 bonds the bipolar plate with the first sealing gasket structure in a pressing mode to obtain a single-sided gasket bipolar plate. After the bipolar plate is bonded with the first sealing gasket structure, the lifting device 1633 of the second jig ejects the single-sided gasket bipolar plate out of the second jig, so that the first transfer manipulator 18 can conveniently eject the single-sided gasket bipolar plate out of the second jig. The first transfer robot 18 then places the single-sided shim bipolar plate on a first flipping mechanism 20. Adopt bipolar plate withhold the mode of pressing at first seal gasket structure like this and bond, can adapt to the first seal gasket structure of different cross sectional shapes to prevent to snatch and remove the precision loss of first seal gasket structural process.

As shown in fig. 1 to 2 and 6 to 9, the production equipment of the fuel cell stack further includes a front surface curing device 21 and a back surface curing device 25. The front curing device 21 is positioned between the first turnover device 20 and the third feeding device 23, and the front curing device 21 is covered above the first conveying device 11. The front side curing device 21 has a front side curing space 214 inside for curing the bond on the single-sided gasketed bipolar plate. The first conveying device 11 conveys the single-sided gasket bipolar plate to pass through the front surface curing space 214 for curing so as to obtain the single-sided gasket bipolar plate with the front surface cured. The reverse surface curing device 25 is located downstream of the second transfer robot 24, and the reverse surface curing device 25 is housed above the first conveyor 11. The reverse curing device 25 has a reverse curing space inside for curing the bonding portion of the double-sided gasket bipolar plate. The first conveying device 11 conveys the double-sided gasket bipolar plate to obtain the double-sided gasket bipolar plate with the solidified reverse side after the double-sided gasket bipolar plate is solidified in the reverse side solidifying space.

As shown in fig. 1 to 2 and 6 to 9, the front surface curing device 21 includes a light curing machine 211, and a first lifting device 212 and a second lifting device 213 respectively located upstream and downstream of the light curing machine 211. The light curing unit 211 includes a lamp housing 2111 covering the first conveyor 11, and a plurality of fourth conveyors 2112 passing through the lamp housing 2111. The fourth conveying devices 2112 are arranged at intervals up and down, a first separation layer 2141 is formed between the fourth conveying device 2112 at the lowest position and a part of the first conveying device 11, a second separation layer 2142 is formed between two adjacent fourth conveying devices 2112, and a third separation layer 2143 is formed between the fourth conveying device 2112 at the uppermost position and the top wall of the lampshade 2111. The first interlayer 2141, the second interlayer 2142, and the third interlayer 2143 together form a front surface cure space 214. The first lifting device 212 and the second lifting device 213 can be lifted to a position corresponding to the first interlayer 2141, a position corresponding to the second interlayer 2142, and a position corresponding to the third interlayer 2143. The first lifting device 212 and the second lifting device 213 each include a first support 2121 located at one side of the first transportation device 11, a first blade 2122 vertically movably disposed on the first support 2121, and a fifth transportation device 2123 disposed on the first blade 2122, and a transportation direction of the fifth transportation device 2123 is identical to a transportation direction of the first transportation device 11.

It should be noted that the front curing device 21 is used for curing the first adhesive layer, in this embodiment, the first adhesive layer is cured by using an ultraviolet light source, and the ultraviolet light sources of the first interlayer 2141, the second interlayer 2142, and the third interlayer 2143 are all located above the first adhesive layer. The first lifting device 212 is used to transfer the single-sided pad bipolar plate to the first separation layer 2141, the second separation layer 2142, or the third separation layer 2143. And the number of the interlayer can be adjusted according to the time required for producing one product, namely the production beat.

It should be noted that the first adhesive layer and the second adhesive layer are preferably UV adhesive (i.e., ultraviolet light curing glue). Adopt UV glue and ultraviolet light source solidification equipment, promote the small level curing time of traditional damp and hot solidification type glue to minute level or even second level, more be fit for bipolar plate sealing treatment automation equipment, greatly promoted the production beat.

The second conveyor 161, the third conveyor 231, the fourth conveyor 2112, and the fifth conveyor 2123 have the same configuration as the first conveyor 11.

As shown in fig. 1 to 5, the production apparatus for a fuel cell stack further includes a second turning device 22 disposed above the first conveyor 11. The second flipping unit 22 is located between the second transfer robot 24 and the reverse side curing unit 25. The second turnover device 22 turns the reverse side of the double-sided gasket bipolar plate substrate with the cured reverse side downward until the reverse side of the double-sided gasket bipolar plate substrate with the cured reverse side faces upward. The reverse side of the double-sided gasket bipolar plate substrate is a surface of the double-sided gasket bipolar plate provided with a second sealing gasket structure. The first turnover device 20 and the second turnover device 22 each include a second telescopic cylinder 201 and a third telescopic cylinder 202 arranged at both sides of the first conveying device 11 at intervals, and the second telescopic cylinder 201 and the third telescopic cylinder 202 are both arranged in a telescopic manner along the up-down direction. Each of the first flipping unit 20 and the second flipping unit 22 further includes a driving shaft 203 rotatably provided with the telescopic portion of the second telescopic cylinder 201 and the telescopic portion of the third telescopic cylinder 202, and a second suction cup 204 provided on the circumferential outer side of the driving shaft 203. The second suction cup 204 is located between the second telescopic cylinder 201 and the third telescopic cylinder 202, and the driving shaft 203 drives the second suction cup 204 to rotate so that the suction nozzle of the second suction cup 204 has a first gripping position facing upward and a second gripping position facing downward.

As shown in fig. 1 to 5 and 12, the first loading device 12 includes a first loading conveyer 121 and a first carrier 122 used by the first loading conveyer 121 for conveying. The bipolar plate bases are multiple and all placed in the first carrier 122. The first loading device 12 further includes a third transfer robot 123, and the third transfer robot 123 places the bipolar plate substrate positioned at the top in the first carrier 122 above the first jig 101 on the first conveying device 11. The first carrier 122 includes a second bottom plate 1221, a plurality of second uprights 1222 spaced around the second bottom plate 1221, and a third lifting device 1223 disposed above the second bottom plate 1221, wherein each of the second uprights 1222 is disposed through a plurality of bipolar plate bases, and the third lifting device 1223 is supported by a bipolar plate base located at the lowest position among the plurality of bipolar plate bases. The number of the first carriers 122 can be adjusted according to the time required for producing a product, i.e. according to the production cycle time. The first carrier 122 can be adjusted according to the shape of the bipolar plate substrate for fixing the position of the bipolar plate substrate. The third lifting device 1223 disposed at the bottom of the first carrier 122 can prevent the bipolar plate from being completely separated from the first carrier 122 due to the defect of dimensional accuracy of the bipolar plate substrate, or due to insufficient press-fitting force or being stuck in the first carrier 122, so as to prevent the bipolar plate from being separated from the first carrier 122, thereby improving the fault tolerance and reliability of the bipolar plate sealing process.

As shown in fig. 1 to 5, the first carriers 122 are plural. The production plant of the fuel cell stack also comprises a second blanking device 14 and a first transfer device 15. The second blanking device 14 is disposed at one side of the first loading device 12. The first transfer device 15 corresponds to the discharge end of the first feeding device 12 and the feed end of the second discharging device 14. The second blanking device 14 includes a first blanking conveyor 141. The first transfer device 15 includes a first transfer conveyor 151, and the first transfer conveyor 151 is used for transferring the first carrier 122 conveyed by the first loading conveyor 121 to above the first unloading conveyor 141. The first feeding device 12 further includes a plurality of first separation papers, and one first separation paper is placed between every two adjacent bipolar plate substrates. The production equipment of the fuel cell stack further comprises a first paper separation transfer device 13 arranged above the first feeding device 12 and the second discharging device 14. The first paper separation transferring device 13 includes a first vertical beam 131, a second vertical beam 132, a cross beam 133, a fourth telescopic cylinder 134, a timing belt, and a third suction cup 135. The first vertical beam 131 and the second vertical beam 132 are located on two sides of the first feeding device 12 and the second discharging device 14, the cross beam 133 is connected to the top of the first vertical beam 131 and the top of the second vertical beam 132, the fourth telescopic cylinder 134 is movably arranged on the cross beam 133 through a synchronous belt, the third suction cup 135 is arranged on a telescopic part of the fourth telescopic cylinder 134, and the third suction cup 135 can transfer a first paper partition in the first carrier 122 on the first feeding conveying device 121 to the first carrier 122 on the first discharging conveying device 141.

In the present embodiment, the first carrier 122 stores the bipolar plate substrate by using a clip and a paper separator. The third lifting device 1223 is independently arranged at the loading position of the first carrier 122, the first carrier 122 is transferred to the discharging end of the first loading device 12 by the first loading conveyer 121, the third lifting device 1223 lifts the uppermost bipolar plate substrate to be consistent with the height of the position which can be sucked by the third transfer manipulator 123, the change of the thickness and the material quantity of the bipolar plate substrate is avoided, and the third lifting device 1223 is used for controlling so that the third lifting device 1223 lifts the uppermost bipolar plate substrate to be consistent with the height of the position which can be sucked by the third transfer manipulator 123, thereby saving the stacking takt time. Here, the second conveyor 161 has the same structure as the first conveyor 11.

In the present embodiment, the first transfer device 15 transfers the empty first carrier 122 using the fourth telescopic cylinder 134 and the timing belt. The fourth telescoping cylinder 134 is preferably a rodless cylinder. The first separation transfer device 13 also comprises a servo motor, and the first separation transfer device 13 is used for transferring separation paper. The third lifting device 1223 of the first carrier 122 enables the third transfer robot 123 to transfer the uppermost bipolar plate substrate on the first carrier 122 to the first jig 101 of the first conveying device 11 at the same height. The third transfer robot 123 further includes a CCD scanner 1624 and a bernoulli chuck, wherein the CCD scanner 1624 is capable of detecting the appearance of the bipolar plate.

As shown in fig. 1 to 5 and 10, the production facility of the fuel cell stack further includes a fourth lifting device 26 and an air tightness detecting device 27 located downstream of the reverse surface solidifying device 25. The fourth elevating device 26 and the air-tightness detecting device 27 are respectively provided on both sides of the first conveyor 11. The fourth lifting device 26 includes a second bracket 261 disposed on one side of the first conveying device 11 and a second supporting plate 262 disposed on the second bracket 261 in a liftable manner, and the second supporting plate 262 can be inserted into a fracture of the first conveying device 11. The air-tightness detecting device 27 includes a third holder 271, a lower mold 272, an upper mold 273, a rotating arm 274, a fourth suction cup 275, and a fifth suction cup 276. The third carriage 271 is disposed at the other side of the first conveyor 11. The lower mold 272 and the upper mold 273 are disposed on a third holder 271 with a space therebetween, the upper mold 273 is movably disposed on the third holder 271 with respect to the lower mold 272, the rotating arm 274 is rotatably disposed on the third holder 271, fourth suction cups 275 and fifth suction cups 276 are fixed to both ends of the rotating arm 274, respectively, the fourth suction cups 275 have a third grip position above the second palette 262 and a first release position above the lower mold 272, and the fifth suction cups 276 have a fourth grip position above the lower mold 272 and a second release position above the second palette 262. The first conveying device 11 conveys the first jig 101 carrying the double-sided gasket bipolar plate to be subjected to the air tightness detection to the fourth lifting device 26, the second supporting plate 262 of the fourth lifting device 26 is inserted into the fracture of the first conveying device 11, and the first jig 101 carrying the double-sided gasket bipolar plate to be subjected to the air tightness detection is lifted to the position with the same height as the lower die 272 of the air tightness detection device 27, so that the fourth suction cup 275 of the air tightness detection device 27 can grab the double-sided gasket bipolar plate to be subjected to the air tightness detection. The fourth chuck 275 of the air-tightness detecting device 27 grasps the double-sided gasketed bipolar plate to be subjected to the air-tightness detection from the second holding plate 262 of the fourth elevating device 26, while the fifth chuck 276 of the air-tightness detecting device 27 grasps the double-sided gasketed bipolar plate having been subjected to the air-tightness detection from the lower mold 272 of the air-tightness detecting device 27, and the swivel arm 274 rotates the fourth chuck 275 and the fifth chuck 276 by 180 degrees at the same time, so that the double-sided gasketed bipolar plate to be subjected to the air-tightness detection and the double-sided gasketed bipolar plate having been subjected to the air-tightness detection are exchanged in position. The double-sided gasketed bipolar plate having undergone the airtightness testing is placed on the second support plate 262 of the fourth elevating means 26 at the same height as the lower mold 272 of the airtightness testing means 27. Meanwhile, the double-sided gasket bipolar plate to be subjected to airtight detection is placed on the lower die 272 of the airtight detection device 27, the upper die 273 is automatically pressed downwards, the upper die 273 and the lower die 272 form an airtight detection environment, and the pressure maintaining and the air leakage airtight detection of the double-sided gasket bipolar plate are completed.

Moreover, the fourth lifting device 26 lifts the first jig 101 carrying the double-sided gasket bipolar plate from the first conveying device 11, so that the first conveying device 11 can be prevented from being blocked due to the fact that the plurality of first jigs 101 are conveyed to the same position, smooth operation of the equipment is guaranteed, and the beat of the equipment is guaranteed. The first conveying device 11 of the present embodiment has a plurality of interruptions, for example, one interruption for the second supporting plate 262 to be inserted into the first conveying device 11, and two interruptions for the first lifting device 212 and the second lifting device 213 to be lifted to the position corresponding to the position of the first partition 2141.

The air-tightness detecting device 27 may be provided in plurality. The number of the air-tightness detecting means 27 is seven in the present embodiment. The number of air tightness detecting means 27 can be adjusted according to the time required for producing one product, i.e. according to the tact time. Moreover, the airtightness detection devices 27 are designed in an independent airtightness detection modularization mode, so that the airtightness detection devices 27 are independent from one another and are not influenced by the vibration of other airtightness detection devices 27, and the reliability and the accuracy of detecting the airtightness of the double-sided gasket bipolar plate are improved.

As shown in fig. 1 to 5 and 11, the production facility of the fuel cell stack further includes an appearance inspection device 28 and a fourth transfer robot 29 located downstream of the airtightness inspection device 27. The double-sided gasketed bipolar plate after passing the air-tightness test will be sent to the appearance testing device 28. The appearance inspection device 28 and the fourth transfer robot 29 are respectively disposed on both sides of the first conveyor 11. The appearance inspection device 28 includes a front side picture taking machine 281 and a back side picture taking machine 282 on one side of the first conveyor 11. The fourth transfer robot 29 is located at the other side of the first transfer device 11. The back side picture taking machine 282 is located downstream of the front side picture taking machine 281. The back side picture taking machine 282 is lower than the front side picture taking machine 281. The front side picture collector 281 and the back side picture collector 282 can display the collected images of the bipolar plate with the double-sided gasket on a display in real time, and an operator can judge whether the bipolar plate with the double-sided gasket is qualified or not by checking the collected images and feed the qualified images back to the system. The fourth transfer robot 29 can grab the double-sided gasket bipolar plate to be collected, which is conveyed by the first conveying device 11 and has the solidified reverse side, onto the reverse side picture collector 282. When the first conveying device 11 conveys the first jig 101 carrying the double-sided gasket bipolar plate with the cured reverse side to the position below the front side picture collector 281, the front side picture collector 281 collects pictures of the front side of the double-sided gasket bipolar plate substrate with the cured reverse side. After the front side of the double-sided gasket bipolar plate substrate with the cured back side is subjected to image acquisition, the fourth transfer manipulator 29 grabs the double-sided gasket bipolar plate with the cured back side above the back side image acquisition machine 282 to perform image acquisition of the back side. The appearance inspection device 28 can be adjusted according to the tact time.

Further, the air tightness detecting device 27 is used for detecting the air tightness of the double-sided gasket bipolar plate to be collected after the reverse side is cured so as to obtain a qualified bipolar plate. And the appearance detection device 28 is used for performing appearance detection on the qualified bipolar plates to obtain finished bipolar plates. The production equipment of the fuel cell stack further comprises a fourth feeding device 30, a third blanking device 33 and a second transfer device 31 which are positioned on the output end side of the first conveying device 11. The third blanking device 33 is provided at one side of the fourth feeding device 30. The second transfer device 31 corresponds to the discharge end of the fourth feeding device 30 and the feed end of the third discharging device 33. The fourth loading device 30 includes a second loading conveyor 301 and a plurality of second carriers 302 used by the second loading conveyor 301 for conveying. The third blanking device 33 includes a second blanking conveyor 331. The second transfer device 31 includes a second transfer conveyor 311, and the second transfer conveyor 311 is used for transferring the second carrier 302 conveyed by the second feeding conveyor 301 to the upper side of the second discharging conveyor 331. The fourth transfer robot 29 places the finished bipolar plate in the second carrier 302 above the second transfer conveyor 311. The production equipment of the fuel cell stack further comprises a second paper separation transfer device 32 arranged above the fourth feeding device 30 and the third blanking device 33. A plurality of second paper partitions are placed in a part of the second carrier 302 conveyed by the second feeding conveyor 301. The second separator transfer device 32 can transfer the second separator in the second carrier 302 on the second feeding conveyor 301 to the top of the finished bipolar plate in the second carrier 302 on the second discharging conveyor 331, so that the plurality of finished bipolar plates and the plurality of second separators in the second carrier 302 are alternately stacked from bottom to top.

It should be noted that, the implementation manner of the "liftable ground" appearing in this embodiment may be implemented by combining a screw rod and nut matching structure with a sliding rail and sliding groove matching structure. The first feeding conveyor 121, the first discharging conveyor 141, the second feeding conveyor 301, and the second discharging conveyor 331 are all the same in structure as the first conveyor.

It should be noted that, the CCD scanner 1624 adopted in this embodiment is preferably a high-precision CCD alignment system, and the visual inspection system is preferably a 3D camera visual inspection system, and detects the bipolar plate substrate, the first sealing gasket, the second sealing gasket and the glue line together, and if a deviation occurs, the deviation is corrected through the linkage of the components, or the qualified bipolar plates are subjected to classified blanking according to the inspection result, so that the efficiency and the qualification rate of the bipolar plate sealing process are greatly improved. In this embodiment, the whole process uses a unified transfer jig tray, that is, the first jig 101, the second jig, the first carrier 122 and the second carrier 302 have the same structure, so as to ensure the positioning function and material tracking of the whole process, and facilitate calculating the production line beat. Compared with a manual gasket pasting mode, the fuel cell stack production equipment adopted in the embodiment improves the sealing consistency and reliability of the bipolar plate, greatly improves the production efficiency of bipolar plate sealing treatment, improves the existing fuel cell bipolar plate sealing treatment process, and improves the process beat and the yield of bipolar plate sealing treatment.

In this embodiment, the first and second gaskets are screen-printed on the surfaces thereof, and the metal bipolar plate is bonded to the first and second gaskets. However, the present invention is not limited thereto, and the bipolar plate substrate may be screen-printed in the sealing groove of the bipolar plate substrate, and then the screen-printed bipolar plate substrate may be turned over and pressed onto the sealing gasket to complete the bonding. Also, the bipolar plate substrate may be a metal plate or a graphite plate.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over 8230," "upper surface," "above," and the like may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A production apparatus of a fuel cell stack, characterized by comprising:

the first conveying device (11) is provided with a feeding end and a discharging end, and the first conveying device (11) is used for conveying the first jig (101);

the first feeding device (12) is positioned on one side of the feeding end of the first conveying device (11), and the first feeding device (12) transfers the bipolar plate substrate to the upper part of the first jig (101);

the second feeding device (16) is arranged on one side of the first conveying device (11) and is positioned at the downstream of the first feeding device (12), the second feeding device (16) comprises a second conveying device (161) and a first screen printing device (162) arranged on one side of the second conveying device (161), the second conveying device (161) is used for conveying a first gasket substrate, and the first screen printing device (162) imprints a first glue layer on the first gasket substrate to obtain a first gasket structure;

a first transfer robot (18) movably arranged between the second conveyor (161) and the first conveyor (11), and bonding the front surface of the bipolar plate substrate and the first sealing gasket structure together through the first transfer robot (18) to obtain a single-sided gasket bipolar plate;

the first turnover device (20) is arranged above the first conveying device (11) and is positioned at the downstream of the first transfer manipulator (18), the first turnover device (20) turns the front side of the single-sided gasket bipolar plate downwards to the front side of the single-sided gasket bipolar plate upwards, and the front side of the single-sided gasket bipolar plate is the surface of the single-sided gasket bipolar plate provided with a first sealing gasket structure;

the third feeding device (23) is arranged on one side of the first conveying device (11) and is positioned at the downstream of the first overturning device (20), the third feeding device (23) comprises a third conveying device (231) and a second screen printing device (232) arranged on one side of the third conveying device (231), the third conveying device (231) is used for conveying a second gasket substrate, and the second screen printing device (232) imprints a second glue layer on the second gasket substrate to obtain a second gasket structure;

and the second transfer manipulator (24) is movably arranged between the third conveying device (231) and the first conveying device (11), the reverse side of the single-sided gasket bipolar plate is bonded with the second sealing gasket structure through the second transfer manipulator (24) to obtain a double-sided gasket bipolar plate, and the reverse side of the single-sided gasket bipolar plate is the surface of the single-sided gasket bipolar plate which is not provided with the first sealing gasket structure.

2. The production apparatus of a fuel cell stack according to claim 1,

the second feeding device (16) further comprises a second jig for bearing the first sealing gasket base body, the second conveying device (161) is used for conveying the second jig loaded with the second sealing gasket base body, the first screen printing device (162) comprises a rack (1621), a jig grabbing and separating mechanism (1622), a screen printing platform (1623), a CCD scanner (1624) and a visual detection device, the jig grabbing and separating mechanism (1622) is arranged on the rack (1621) in a lifting mode and is located above the second conveying device (161), the screen printing platform (1623) is movably arranged on the jig grabbing and separating mechanism (1622), the CCD scanner (1624) is arranged on the screen printing platform (1623), and the visual detection device is movably arranged above the second conveying device (161);

the jig grabbing and separating mechanism (1622) is provided with a grabbing and separating position for grabbing and separating the second jig from the second conveying device (161) and a first placing position for placing the second jig above the second conveying device (161), and the screen printing platform (1623) imprints the first glue layer on the first sealing gasket base body in the second jig;

the second feeding device (16) further comprises a lifting device (164) arranged on the other side of the first conveying device (11), the first overturning device (20) is located at the downstream of the lifting device (164), and the lifting device (164) is provided with a lifting position for lifting the first jig (101) on the first conveying device (11) away from the first conveying device (11) and a second placing position for placing the first jig (101) on the first conveying device (11);

the production equipment of the fuel cell stack further comprises a first discharging device (19) arranged on one side of the second conveying device (161) and a jig transfer mechanism (17) arranged above the second conveying device (161) and the first discharging device (19), wherein the jig transfer mechanism (17) is used for transferring the second jig carrying the first sealing gasket structure on the second conveying device (161) to the first discharging device (19), and the first transfer manipulator (18) is used for pressing the bipolar plate substrate in the first jig (101) on the lifting device (164) to be in pressure joint with the first sealing gasket structure in the second jig on the first discharging device (19) so as to bond the front face of the bipolar plate substrate and the first sealing gasket structure together.

3. The production apparatus of a fuel cell stack according to claim 2,

the jig transferring mechanism (17) comprises a guide rail (171) arranged above the second conveying device (161) and the first blanking device (19), a transferring arm (172) movably arranged on the guide rail (171), a first telescopic cylinder (173) arranged at the end part of the transferring arm (172), and a first sucker (174) arranged at a telescopic part of the first telescopic cylinder (173);

the second tool includes first bottom plate, interval setting and is in a plurality of first pole settings and the setting all around of first bottom plate are in jacking device (1633) of first bottom plate top, every first pole setting all wears to locate first sealed gasket base member, jacking device (1633) can support in first sealed gasket base member.

4. The production apparatus of a fuel cell stack according to claim 1,

the production equipment of the fuel cell stack further comprises a front curing device (21) and a back curing device (25), wherein the front curing device (21) is positioned between the first turnover device (20) and the third feeding device (23), the front curing device (21) is covered above the first conveying device (11), a front curing space (214) for curing a bonding position on the single-sided gasket bipolar plate is arranged in the front curing device (21), and the first conveying device (11) conveys the single-sided gasket bipolar plate to pass through the front curing space (214) for curing so as to obtain the single-sided gasket with the front cured;

the reverse side curing device (25) is located at the downstream of the second transfer manipulator (24), the reverse side curing device (25) covers the first conveying device (11), a reverse side curing space for curing the bonding position on the double-sided gasket bipolar plate is arranged in the reverse side curing device (25), and the first conveying device (11) conveys the double-sided gasket bipolar plate to obtain the double-sided gasket bipolar plate after the reverse side curing through the reverse side curing space.

5. The fuel cell stack production apparatus according to claim 4,

the front curing device (21) comprises a light curing machine (211), and a first lifting device (212) and a second lifting device (213) which are respectively positioned at the upstream and the downstream of the light curing machine (211), wherein the light curing machine (211) comprises a lampshade (2111) which is covered above the first conveying device (11) and a plurality of fourth conveying devices (2112) which penetrate through the lampshade (2111);

the fourth conveying devices (2112) are arranged at intervals up and down, a first interlayer (2141) is formed between the fourth conveying device (2112) positioned at the lowest position and part of the first conveying devices (11), a second interlayer (2142) is formed between every two adjacent fourth conveying devices (2112), a third interlayer (2143) is formed between the fourth conveying device (2112) positioned at the highest position and the top wall of the lampshade (2111), the first interlayer (2141), the second interlayer (2142) and the third interlayer (2143) jointly form the front curing space (214), and the first lifting device (212) and the second lifting device (213) can lift to a position corresponding to the first interlayer (2141), a position corresponding to the second interlayer (2142) and a position corresponding to the third interlayer (2143);

the first lifting device (212) and the second lifting device (213) respectively comprise a first support (2121) positioned on one side of the first conveying device (11), a first supporting plate (2122) arranged on the first support (2121) in a vertically movable mode, and a fifth conveying device (2123) arranged on the first supporting plate (2122), and the conveying direction of the fifth conveying device (2123) is consistent with the conveying direction of the first conveying device (11).

6. The fuel cell stack production apparatus according to claim 4,

the production equipment of the fuel cell pile further comprises a second turnover device (22) arranged above the first conveying device (11), the second turnover device (22) is positioned between the second transfer manipulator (24) and the reverse side curing device (25), the second turnover device (22) turns the reverse side of the double-sided gasket bipolar plate substrate with the cured reverse side downwards to the reverse side of the double-sided gasket bipolar plate substrate with the cured reverse side upwards, and the reverse side of the double-sided gasket bipolar plate substrate is the surface of the double-sided gasket bipolar plate provided with the second sealing gasket structure;

the first turnover device (20) and the second turnover device (22) respectively comprise a second telescopic cylinder (201) and a third telescopic cylinder (202) which are arranged at two sides of the first conveying device (11) at intervals, and the second telescopic cylinder (201) and the third telescopic cylinder (202) are both arranged in a telescopic manner along the vertical direction;

the first turnover device (20) and the second turnover device (22) further comprise a driving shaft (203) which is rotatably provided with a telescopic part of the second telescopic cylinder (201) and a telescopic part of the third telescopic cylinder (202), and a second sucker (204) which is arranged on the circumferential outer side of the driving shaft (203), wherein the second sucker (204) is positioned between the second telescopic cylinder (201) and the third telescopic cylinder (202), and the driving shaft (203) drives the second sucker (204) to rotate so that a suction nozzle of the second sucker (204) has a first grabbing position facing upwards and a second grabbing position facing downwards.

7. The production apparatus of a fuel cell stack according to claim 1,

the first feeding device (12) comprises a first feeding conveying device (121) and a first carrier (122) used for conveying by the first feeding conveying device (121), the number of the bipolar plate substrates is multiple, the multiple bipolar plate substrates are placed in the first carrier (122), the first feeding device (12) further comprises a third transfer manipulator (123), and the third transfer manipulator (123) places the bipolar plate substrate located at the top in the first carrier (122) above the first fixture (101) on the first conveying device (11);

the first carrier (122) comprises a second base plate (1221), a plurality of second vertical rods (1222) arranged around the second base plate (1221) at intervals, and a third lifting device (1223) arranged above the second base plate (1221), wherein each second vertical rod (1222) penetrates through a plurality of bipolar plate matrixes, and the third lifting device (1223) is supported on the bipolar plate matrix located at the lowest position in the bipolar plate matrixes.

8. The production apparatus of a fuel cell stack according to claim 7,

the first carriers (122) are multiple, the production equipment of the fuel cell stack further comprises a second blanking device (14) and a first transfer device (15), the second blanking device (14) is arranged on one side of the first feeding device (12), the first transfer device (15) corresponds to the discharge end of the first feeding device (12) and the feed end of the second blanking device (14), the second blanking device (14) comprises a first blanking conveying device (141), the first transfer device (15) comprises a first transfer conveying device (151), and the first transfer conveying device (151) is used for transferring the first carriers (122) conveyed by the first feeding conveying device (121) to the upper part of the first blanking conveying device (141);

the first feeding device (12) further comprises a plurality of first separation papers, one first separation paper is placed between every two adjacent bipolar plate substrates, the production equipment of the fuel cell stack further comprises a first separation paper transfer device (13) arranged above the first feeding device (12) and the second blanking device (14), the first separation paper transfer device (13) comprises a first vertical beam (131), a second vertical beam (132), a cross beam (133), a fourth telescopic cylinder (134), a synchronous belt and a third suction cup (135), the first vertical beam (131) and the second vertical beam (132) are located on two sides of the first feeding device (12) and the second blanking device (14), the cross beam (133) is connected to the top of the first vertical beam (131) and the top of the second vertical beam (132), the fourth telescopic cylinder (134) is movably arranged on the cross beam (133) through the synchronous belt, the third telescopic cylinder (135) is arranged on the first vertical beam (131), and the first telescopic cylinder (121) is capable of transferring the first separation paper to the first suction cup conveying device (121) on the first telescopic cylinder (135).

9. The fuel cell stack production apparatus according to claim 4,

the production equipment of the fuel cell stack further comprises a fourth lifting device (26) and an air tightness detection device (27) which are positioned at the downstream of the reverse surface curing device (25), the fourth lifting device (26) and the air tightness detection device (27) are respectively arranged at two sides of the first conveying device (11), the fourth lifting device (26) comprises a second bracket (261) arranged at one side of the first conveying device (11) and a second supporting plate (262) arranged on the second bracket (261) in a lifting way, and the second supporting plate (262) can be inserted into a fracture of the first conveying device (11);

the air tightness detecting device (27) comprises a third support (271), a lower mold (272), an upper mold (273), a rotating arm (274), a fourth suction cup (275) and a fifth suction cup (276), wherein the third support (271) is arranged on the other side of the first conveying device (11), the lower mold (272) and the upper mold (273) are arranged on the third support (271) at intervals, the upper mold (273) is movably arranged on the third support (271) relative to the lower mold (272), the rotating arm (274) is rotatably arranged on the third support (271), the fourth suction cup (275) and the fifth suction cup (276) are respectively fixed at two ends of the rotating arm (274), the fourth suction cup (275) has a third grabbing position above the second supporting plate (262) and a first releasing position above the lower mold (272), and the fifth suction cup (276) has a fourth grabbing position above the lower mold (272) and a second releasing position above the second supporting plate (262).

10. The production apparatus of a fuel cell stack according to claim 9,

the production equipment of the fuel cell stack further comprises an appearance detection device (28) and a fourth transfer manipulator (29) which are positioned at the downstream of the air tightness detection device (27), wherein the appearance detection device (28) and the fourth transfer manipulator (29) are respectively arranged at two sides of the first conveying device (11),

the appearance detection device (28) comprises a front side picture collector (281) and a back side picture collector (282) which are positioned on one side of the first conveying device (11), the fourth transfer manipulator (29) is positioned on the other side of the first conveying device (11), the back side picture collector (282) is positioned at the downstream of the front side picture collector (281), the back side picture collector (282) is lower than the front side picture collector (281), the fourth transfer manipulator (29) can grab the double-sided gasket bipolar plate to be collected after the back side solidification conveyed on the first conveying device (11) to the upper part of the back side picture collector (282), and the air tightness detection device (27) is used for carrying out air tightness detection on the double-sided gasket bipolar plate to be collected after the solidification so as to obtain a qualified bipolar plate; the appearance detection device (28) is used for carrying out appearance detection on the qualified bipolar plate to obtain a finished bipolar plate;

the production equipment of the fuel cell stack further comprises a fourth feeding device (30), a third discharging device (33) and a second transfer device (31) which are positioned on one side of the output end of the first conveying device (11), wherein the third discharging device (33) is arranged on one side of the fourth feeding device (30), the second transfer device (31) corresponds to the discharging end of the fourth feeding device (30) and the feeding end of the third discharging device (33),

the fourth loading device (30) comprises a second loading conveyor (301) and a plurality of second carriers (302) used for conveying by the second loading conveyor (301), the third blanking device (33) comprises a second blanking conveyor (331), the second transfer device (31) comprises a second transfer conveyor (311), and the second transfer conveyor (311) is used for transferring the second carriers (302) conveyed by the second loading conveyor (301) to the upper side of the second blanking conveyor (331);

the fourth transfer manipulator (29) places the finished bipolar plates in a second carrier (302) above the second transfer conveying device (311), the production equipment of the fuel cell stack further comprises a second paper separating and transferring device (32) arranged above the fourth feeding device (30) and the third blanking device (33), a plurality of second paper separating and transferring devices are placed in the second carrier (302) at the part conveyed by the second feeding conveying device (301), and the second paper separating and transferring devices (32) can transfer the second paper separating and transferring devices in the second carrier (302) on the second feeding conveying device (301) to the position above the finished bipolar plates in the second carrier (302) on the second blanking conveying device (331) so that the finished bipolar plates and the second paper separating and transferring devices in the second carrier (302) are sequentially and alternately stacked from bottom to top.