A fuel cell bipolar plate automatic film laminating machine

Abstract

The present invention discloses an automatic film laminating machine for bipolar plates of fuel cells, which comprises an equipment base, a sealing film loading trolley module, a sealing film tooling plate unloading trolley module, a sealing film tooling lifting module, a plate belt feeding module, a robot module, a plate positioning module, a plate and sealing film grabbing tooling, a sealing film tooling plate unloading module and a plate unloading module. The automatic film laminating machine for bipolar plates of fuel cells of the present application effectively improves the efficiency of the process of laminating sealing films of plates and the utilization rate of films, reduces the pollution of the surface of plates and solves the problem of uneven surface of sealing films after laminating.

Description

Technical Field

[0001] The invention relates to the technical field of fuel cell production, and more specifically to an automatic film pasting machine for bipolar plates of fuel cells. Background Art

[0002] As the main component of fuel cells, bipolar plates are used in increasing quantities and types with the gradual promotion of hydrogen energy. In hydrogen energy power systems, the electricity of fuel cells is obtained through the chemical reaction of hydrogen and oxygen. Hydrogen, as a fuel, is a colorless, odorless, flammable and explosive small molecule gas that is prone to leakage, which requires each bipolar plate to have good airtightness. At present, the sealing of bipolar plates is mainly completed by the bonding of the plates and the sealing film, which are bonded by glue.

[0003] The sealing membrane of the bipolar plate has a complex structure, a relatively soft material (silicone), and requires a high degree of accuracy in the bonding position. The existing membrane is generally mounted manually or by a manual press.

[0004] Manually attaching the sealing film is difficult because the film is easily twisted and there is no slot on the plate. Moreover, the plate has been coated with glue. If there is a corner that is not attached properly or distortion is found during the installation process, the sealing film needs to be removed and re-attached. This will cause the sealing film to be scrapped and the surface of the plate to be contaminated. The efficiency of attaching the sealing film is extremely low.

[0005] The manual press is used for mounting in such a way that the sealing film is placed in the contoured groove of the tooling of the manual press, the plate coated with glue is buckled onto the tooling, and then the sealing film is lifted up by the lifting device to fit it to the metal plate. In this case, due to the high fluidity of the colloid coated on the plate, it is easy to flow onto the tooling, causing contamination of the plate surface during the next press. Moreover, when a large amount of colloid accumulates on the tooling, it will clog the gap of the lifting tooling, causing the lifting device to be unable to fall after lifting. In this case, the tooling needs to be cleaned, and the mounting efficiency will be greatly affected. In addition, due to the small contoured width of the bottom lifting tooling, its flatness deviation will be caused during the long lifting process, resulting in the undesirable phenomenon that the sealing film is not compacted after pressing. Summary of the invention

[0006] The present application proposes an automatic film laminating machine for fuel cell bipolar plates, which aims to solve the problems of low efficiency, easy contamination of the plate surface, waste of sealing film, and unevenness after laminating in the prior art of manual sealing film laminating and manual pressing of sealing film.

[0007] In order to achieve the above technical objectives, this application adopts the following technical solutions:

[0008] A fuel cell bipolar plate automatic film laminating machine, comprising:

[0009] Equipment base;

[0010] A sealing film loading trolley module is positioned at one side of the equipment base, and is used to provide sealing film. The sealing film loading trolley module is provided with stacked sealing film tooling plates, and the sealing film is placed on the sealing film tooling plates;

[0011] A sealing film tooling lifting module, which is fixed in the equipment base and extends out of the sealing film loading trolley module to lift the stacked sealing film tooling plates to a mold taking height;

[0012] A plate belt feeding module is fixed to the upper surface of the equipment base, and the front end of the plate belt feeding module is connected to a previous station to transport the plate coated with glue at the previous station to a plate removal position;

[0013] A robot module is fixed to the upper surface of the equipment base, the robot module is connected to a plate and sealing film grabbing tool, and the plate, sealing film and sealing film are grabbed by the plate and sealing film grabbing tool;

[0014] A plate positioning module, which is fixed to the upper surface of the equipment base and is located within the operating range of the robot, and is used to place and accurately position the plate to be filmed grabbed by the robot from the plate taking position;

[0015] A sealing film tooling plate unloading module is fixed to the upper surface of the equipment base and is located between the robot module and the sealing film loading trolley module. The sealing film tooling plate unloading module grabs the sealing film tooling plate from which the sealing film has been taken away, and transports the sealing film tooling plate to a sealing film tooling plate unloading trolley;

[0016] The plate unloading module is fixed on the upper surface of the equipment base. The plate unloading module moves and grabs the plate on which the film has been pasted on the plate positioning module, and transports the plate to the plate unloading area.

[0017] Preferably, the sealing film loading trolley comprises:

[0018] A vehicle body with casters, a top mounting frame being fixed on the top of the vehicle body through a supporting column, and guide rods being fixed at the four corners of the vehicle body respectively;

[0019] A tooling pallet, which is fixed on the four guide rods through linear bearings, and the tooling pallet moves linearly up and down along the guide rods under the action of external force; at least one group of sealing film tooling plates is stacked on the tooling pallet;

[0020] A fixed positioning rod, which is fixed on the vehicle body and is respectively arranged at the front end of each set of sealing film tooling plates;

[0021] An adjusting and positioning mechanism comprises:

[0022] Adjustment positioning rods, which are respectively arranged at the rear end of each group of the sealing film tooling plates and are fixed on a positioning rod adjustment device after passing through the adjustment holes arranged on the tooling support plates;

[0023] The positioning rod adjustment device includes a slide rail arranged on the upper surface of the vehicle body, a slider fixed on the slide rail, and an adjustment part fixed on the upper surface of the vehicle body. The adjustment part includes an adjustment handle and a ball screw connected to the adjustment handle. The slider is driven to move on the slide rail by rotating the adjustment handle. The lower end of the adjustment positioning rod is fixed on the slider.

[0024] Preferably, a top guide rod positioning plate is provided on the top mounting frame, and the top guide rod positioning plate abuts against the top end of the adjustment positioning rod.

[0025] Preferably, a handle is provided on the support column on the same side as the adjustment handle.

[0026] Preferably, a lower limit bracket is provided on the vehicle body, which is located below the tooling pallet so as to limit the lowest position of the tooling pallet.

[0027] Preferably, anti-collision blocks are provided on the four edges of the vehicle body, and positioning blocks and guide rollers are provided on the edge connected to the equipment base.

[0028] Preferably, the sealing membrane tooling lifting module comprises:

[0029] a height sensor, which is arranged on the main body of the equipment and is used to detect the height of the sealing film tooling plates stacked in the sealing film feeding trolley module and transmit the height value to a lifting mechanism;

[0030] The lifting mechanism comprises:

[0031] A fixing bracket, to which a mounting base is connected, and fixed in the equipment base through the fixing bracket;

[0032] A linear slide rail is provided on one side of the mounting seat;

[0033] A motor is fixed on the fixed bracket, and a coupling and a ball screw are provided on the motor, and the ball screw is fixed in the mounting seat;

[0034] The ejector plate is fixed on the ball screw through a nut seat, and the ejector plate moves up and down along the linear slide rail driven by the nut seat and the ball screw; the ejector plate extends under the tooling plate so as to lift the tooling plate to an appropriate height position according to the height value transmitted by the height sensor.

[0035] Preferably, the plate belt feeding module comprises:

[0036] A conveyor belt mechanism is arranged on the mounting bracket, wherein the front end of the conveyor belt mechanism is connected to the previous station, and the rear end thereof extends to the electrode plate position;

[0037] A feed detection sensor disposed at the front end of the conveyor belt mechanism, the feed detection sensor being fixed on an adjustment bracket;

[0038] a plate stopper disposed at the end of the conveyor belt mechanism; and

[0039] A sensor is provided between the pole plate stopper and the end of the conveyor belt for detecting whether there is a pole plate at the stop position.

[0040] Preferably, the plate positioning module comprises:

[0041] A positioning table, which is fixed on a base by four equal-height support columns; the positioning table is provided with symmetrical positioning pin grooves from four corners inward, each of which includes a vertical positioning pin groove and a horizontal positioning pin groove;

[0042] Positioning pins are arranged in a positioning pin groove in a one-to-one correspondence, and each two adjacent horizontal positioning pins or vertical positioning pins are installed in the positioning pin groove by a mounting base, and the mounting base is arranged below the positioning table;

[0043] The horizontal mounting base or the vertical mounting base is respectively connected to the corresponding linear modules, and the linear modules drive each of the positioning pins to move in the positioning pin groove under the drive of the driving motor;

[0044] As the positioning pin moves, a plate positioning interval is formed between the positioning pins protruding from the positioning pin grooves. Preferably, the plate and sealing film grabbing tool comprises: a plate adsorption assembly and a sealing film adsorption assembly, wherein:

[0045] The plate adsorption assembly comprises:

[0046] An adsorption connection plate, on which a robot connection piece is provided, and through which the robot connection piece is connected to the robot;

[0047] A first quick-insert plug, which passes through the adsorption connection plate and is connected to a suction cup installation guide rod, and the first quick-insert plug is connected to a vacuum generator to generate negative pressure to supply the suction cup installation guide rod;

[0048] The suction cup installation guide rod has a terminal end connected to the suction cup, and the suction cup installation guide rod transmits the negative pressure to the suction cup so that the suction cup can absorb the electrode plate;

[0049] Linear bearings, which are sleeved one by one on the outer side of the first quick-connect plug and located on the upper surface of the adsorption connection plate, and the linear bearings guide the adsorption connection plate to move linearly up and down under the drive of external force;

[0050] A first limit block, which is arranged at the upper end of the linear bearing;

[0051] The sealing film adsorption component comprises:

[0052] Adsorbing the upper tooling, on which a second quick-plug is provided, the second quick-plug is connected to the vacuum generator to generate a negative pressure;

[0053] The lower adsorption tooling has a boss on its lower surface that matches the shape of the sealing film, and a plurality of adsorption holes are formed on the boss at intervals; a plurality of grooves are formed on the upper surface of the lower adsorption tooling, and the grooves are connected to the adsorption holes;

[0054] The lower adsorption tooling is connected to the upper adsorption tooling via a sealing gasket, so that a sealed cavity is formed between the lower adsorption tooling, the upper adsorption tooling and the sealing gasket;

[0055] A guide post connects the adsorption connection plate with the adsorption upper tooling and the adsorption lower tooling, and a second stopper is provided on the portion of the guide post located on the upper surface of the adsorption connection plate; a spring is sleeved between the guide post located between the adsorption connection plate and the adsorption upper tooling;

[0056] A through hole is provided between the upper adsorption tooling and the lower adsorption tooling, and the suction cup can move up and down in the through hole along with the adsorption connecting plate.

[0057] Preferably, four guide grooves are provided on the lower surface of the adsorption lower tooling, and a guide pin is correspondingly provided in a guide groove, and the guide pin is inserted into the positioning pin of the plate positioning module when the plate is adsorbed.

[0058] Preferably, the plate blanking module comprises:

[0059] The material receiving platform is fixed on the equipment base through the material receiving mounting frame;

[0060] A linear slide rail, which is fixed on the equipment base, and a supporting slider is provided on the linear slide rail;

[0061] A guide rod, the bottom of which is fixed on the support slider, a linear bearing is provided on the guide rod, the linear bearing is connected to a floating material-collecting plate, and the floating material-collecting plate is driven by a material-collecting cylinder to move up and down along the guide rod under the action of the linear bearing;

[0062] A floating feeding plate, on which a vacuum adsorption module is provided;

[0063] A top plate, which is fixed above the guide pillar, and a vacuum generator is provided on the top plate, and the vacuum generator is connected to the vacuum adsorption module;

[0064] The floating material taking plate is driven by the displacement cylinder and moves to the top of the electrode plate positioning module along with the supporting slide block, absorbs the electrode plate with film pasting completed and transfers it back to the top of the material receiving platform and then places the electrode plate on the material receiving platform.

[0065] Preferably, one side of the equipment base is provided with two stations connected to the sealing film loading trolley and a sealing film unloading trolley with the same structure for unloading; two sets of guide mechanisms are provided on the side, and the guide mechanisms include:

[0066] Two guide rods are provided in the middle to hold a space for accommodating a sealing film loading trolley or a sealing film unloading trolley, which are fixed at the lower section of the side and extend outward; a guide seat is driven up and down by a guide cylinder.

[0067] Due to the adoption of the above technical solution, the fuel cell bipolar plate automatic film pasting machine of the present application effectively improves the efficiency of the process of pasting the sealing film on the plate and the membrane utilization rate, reduces the contamination of the surface of the plate and solves the problem of uneven surface after pasting. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 This is a schematic diagram of the assembly structure of each module of this application;

[0069] Figure 2 This is a schematic diagram of the structure of the sealing film loading trolley module of the present application;

[0070] Figure 3 This is a schematic diagram of the sealing membrane lifting module structure of the present application;

[0071] Figure 4 This is a schematic diagram of the structure of the plate belt feeding module of the present application;

[0072] Figure 5 This is a schematic diagram of the structure of the plate positioning module of the present application;

[0073] Fig. 6A This is a schematic diagram of the structure of the upper surface of the plate and sealing film grabbing tooling of the present application;

[0074] Figure 6B This is a schematic diagram of the structure of the lower surface of the plate and sealing film grabbing tooling of the present application;

[0075] Figure 7 This is a schematic diagram of the structure of the sealing film tooling plate blanking module for this application;

[0076] Figure 8 This is a schematic diagram of the plate blanking module structure of the present application;

[0077] Fig. 9 This is a schematic diagram of the structure of the equipment base of this application;

[0078] Fig.10 This is a schematic diagram of the overall appearance of this application. DETAILED DESCRIPTION

[0079] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0080] See also Figure 1 The figure shows the assembly structure diagram of each module of the present application. The fuel cell bipolar plate automatic laminating machine of the present application includes an equipment base 1, a sealing film loading trolley module 2, a sealing film tooling plate unloading trolley module 3, a sealing film tooling lifting module 4, a plate belt feeding module 5, a robot module 6, a plate positioning module 7, a plate and sealing film grabbing tool 8, a sealing film tooling plate unloading module 9, a plate unloading module 10 and other structures.

[0081] like Figure 1As shown, the equipment base 1 is used to provide installation references for various components or modules. The sealing film loading trolley module 2 is positioned on one side of the equipment base 1, and the sealing film loading trolley module 2 is used to centrally provide sealing films. The sealing film tooling plate unloading trolley module 3 is used to place the sealing film tooling pallet that has been taken out of the sealing film. The sealing film tooling lifting module 4 is fixed in the equipment base 1, and extends out of the sealing film loading trolley module 2 to lift the stacked sealing film tooling plates to a mold taking height. The plate belt feeding module 5 is fixed on the upper surface of the equipment base 1, and the front end of the plate belt feeding module 5 is connected to the previous station to transport the plate coated with glue at the previous station to a plate taking position. The robot module 6 is fixed on the upper surface of the equipment base 1, and the robot module 1 is connected to a plate and sealing film grabbing tool 8, through which the plate and sealing film grabbing tool 8 is used to grab, transfer the plate and the sealing film, and apply the sealing film. The plate positioning module 7 is fixed on the upper surface of the equipment base 1 and is located within the operating range of the robot. The plate positioning module 7 is used to place and accurately position the plate to be filmed that the robot grabs from the plate taking position. The sealing film tooling plate unloading module 9 is fixed on the upper surface of the equipment base and is located between the robot module and the sealing film loading trolley module. The sealing film tooling plate unloading module grabs the sealing film tooling plate from which the sealing film has been taken away, and transports the sealing film tooling plate to the sealing film tooling plate unloading trolley module 3. The plate unloading module 10 is fixed on the upper surface of the equipment base 1. The plate unloading module 10 moves and grabs the plate that has been filmed on the plate positioning module 7, and transports the plate to the plate unloading area. The specific structure is described as follows in combination with the diagrams of each component.

[0082] See also Fig. 9 As shown, Fig. 9The schematic diagram of the structure of the equipment base of the present application. The equipment base 1 includes a protective shell 101 on three sides, an equipment mounting substrate 102 located on the upper surface, and another side without a protective shell. A mounting plate 103 is provided at the lower section of the side. Two workstations are provided on the mounting plate 103, one workstation is used to fix the sealing film loading trolley module 2, and the other workstation is used to fix the sealing film tooling plate unloading trolley module 3 with the same structure as the sealing film loading trolley module 2. A set of guide mechanisms is correspondingly arranged on each workstation. The guide mechanism includes: two guide rods 104 and a guide seat 105. The middle of the two guide rods 104 maintains a space for accommodating a sealing film loading trolley module 2 or a sealing film tooling plate unloading trolley module 3, and a guide block 106 is provided on the guide rod 104. The guide rod 104 and the guide block 106 are used to move and guide the sealing film loading trolley module 2 or the sealing film tooling plate unloading trolley module 3. Two guide seats 105 are arranged on each work station. The guide seats 105 are driven to move up and down by guide cylinders 107. The guide seats 105 are used to accurately position the sealing film loading trolley module 2 or the sealing film tooling plate unloading trolley module 3.

[0083] In addition, if Fig. 9 As shown, a displacement cylinder 108 is also fixed on the mounting base plate 102 , which is used to provide power for the movement of the electrode unloading module 10 .

[0084] See also Figure 2 As shown, Figure 2 Schematic diagram of the structure of the sealing film loading trolley module 2 of the present application. The sealing film loading trolley 2 comprises a body 201 with casters, a tooling support plate 202, a fixed positioning rod 203, an adjustable positioning mechanism and other components.

[0085] Please see for details Figure 2A top mounting frame 205 is fixed above the vehicle body 201 with casters through a supporting column 204, and guide rods 206 are fixed at the four corners of the vehicle body 201. The tooling pallet 202 is fixed to the four guide rods 206 through linear bearings 207. The tooling pallet 202 moves linearly up and down along the guide rods 206 under the action of an external force (i.e., the lifting force provided by the sealing film tooling lifting module 4 described below). At least one group of the sealing film tooling plates 208 are stacked on the tooling pallet 202, and the sealing film tooling plates 208 are used to carry the sealing film. Fixed positioning rods 203 are fixed to the vehicle body 201, and are respectively arranged at the front end of each group of the sealing film tooling plates 208, and are used to prevent the sealing film tooling plates 208 from moving forward. The adjusting positioning mechanism is used to adjust and limit the position space of the sealing film tooling plates 208 according to different models of the sealing film tooling plates 208. The adjustment and positioning mechanism includes an adjustment and positioning rod 209 and a positioning rod adjustment device 210. The adjustment and positioning rod 209 is respectively arranged at the rear end of each group of the sealing film tooling plates 208 and is fixed on a positioning rod adjustment device 210 after passing through an adjustment hole 211 arranged on the tooling support plate 202. The positioning rod adjustment device 210 includes a slide rail 212 arranged on the upper surface of the vehicle body 201, a slider 213 fixed on the slide rail 212, and an adjustment part fixed on the upper surface of the vehicle body 201. The adjustment part includes an adjustment handle 214 and a ball screw connected to the adjustment handle. The slider 213 is driven to move on the slide rail 212 by rotating the adjustment handle 214. The lower end of the adjustment and positioning rod 209 is fixed on the slider 213. Rotating the adjustment handle 214 can drive the adjustment and positioning rod 209 to move forward and backward within the range of the adjustment hole 211 to control the restricted space between the adjustment and positioning rod 203.

[0086] In addition, a top guide rod positioning plate 215 is provided on the top mounting frame 205, and the top guide rod positioning plate 215 abuts against the top of the adjustment positioning rod 209 to prevent the tooling pallet 202 from being separated. In order to cooperate with the position movement of the adjustment positioning rod 209, the top guide rod positioning plate 215 needs to be replaced after each adjustment. A handle 216 is provided on the support column 204 on the same side as the adjustment handle 214. The operator can operate the handle 216 installed on the support column 204 to push the sealing film loading trolley module 2 to move.

[0087] Please see the detailed Figure 2As shown, the vehicle body 201 is provided with a lower limit bracket 217, which is located below the tooling pallet 202 so as to limit the lowest position of the tooling pallet 202. Anti-collision blocks 218 are provided on the four edges of the vehicle body 201 to prevent the vehicle body 201 from violently colliding with the equipment base 1. The vehicle body 201 is provided with a positioning block 219 on the edge connected to the equipment base 1, and the positioning block 219 is combined with the guide seat 105 on the equipment base 1 to complete precise positioning. Guide rollers 220 are respectively provided on the three sides of the vehicle body 201. When the guide rollers 220 are close to the equipment base 1, they contact the guide rods 104 on the equipment base 1 to complete the initial movement guidance of the vehicle body 201, allowing the vehicle body to move along the direction of the guide rods 104.

[0088] The sealing film loading trolley module 2 of the present application can be applied to sealing films of different types, can achieve accurate positioning with the equipment base, and is easy to operate. The sealing film tooling plate unloading trolley module 3 has the same structure as the sealing film loading trolley module 2.

[0089] See also Figure 3 As shown, Figure 3 This is a schematic diagram of the sealing film lifting module structure of the present application. The sealing film tooling lifting module 4 includes a height sensor and a lifting mechanism. The height sensor is arranged on the equipment body 1, which is used to detect the height of the sealing film tooling plate 208 stacked in the sealing film feeding trolley module 2, and transmit the height value to a lifting mechanism. The lifting mechanism includes a fixed bracket 401, a mounting seat 402, a motor 403, a coupling 404, a ball screw 405 and a lifting support plate 406. The fixed bracket 401 is connected to the mounting seat 402, and is fixed in the equipment base 1 through the fixed bracket 401 and the mounting seat 402. A linear slide rail is provided on one side of the mounting seat 402. The motor 403 is fixed on the fixed bracket 401, and the motor 403 is provided with a coupling 404 and a ball screw 405, and the ball screw 405 is fixed in the mounting seat 402. The ejector support plate 406 is fixed on the ball screw 405 through a nut seat 407 , and the ejector support plate 406 moves up and down along the linear guide rail driven by the nut seat 407 and the ball screw 405 .

[0090] Combination Figure 1 As shown, the material lifting plate 406 extends under the tooling plate 202 so as to lift the tooling plate 202 to an appropriate height position according to the height value transmitted by the height sensor.

[0091] See also Figure 4 As shown, Figure 4This is a schematic diagram of the structure of the plate belt feeding module of the present application. The plate belt feeding module 5 includes a conveyor belt mechanism 501 arranged on a mounting bracket 506, the front end of the conveyor belt mechanism 501 is connected to the previous station to receive the plate that has been glued at the previous station, and the end of the conveyor belt mechanism 501 extends to the plate taking position. A feed detection sensor 502 is provided at the front end of the conveyor belt mechanism 501, and the feed detection sensor 502 is fixed on an adjustment bracket 503. A plate stopper 504 is provided at the end of the conveyor belt mechanism 501, and the plate stopper 504 serves as a plate conveying stopper. A sensor 505 is provided between the plate stopper 504 and the end of the conveyor belt mechanism, which is used to detect whether there is a plate at the stop position.

[0092] like Figure 5 As shown, Figure 5 Schematic diagram of the plate positioning module structure of the present application. The plate positioning module 7 includes a positioning table 701, a positioning pin 702, a mounting base 703 and a linear module 704. Figure 5 As shown, the positioning table 701 is fixed on a base 706 by four equal-height support columns 705. The positioning table 701 is provided with symmetrical positioning pin grooves 707 penetrating the positioning table 701 from four corners inward, and each positioning pin groove 707 includes a vertical positioning pin groove 7071 and a horizontal positioning pin groove 7072. A positioning pin 702 is provided in each positioning pin groove 707, and as shown in the figure, each adjacent two horizontal positioning pins or vertical positioning pins are installed in the positioning pin groove by a mounting base 703, and the mounting base 703 is arranged below the positioning table 701. The horizontal mounting base 703 or the vertical mounting base 703 is respectively connected to the corresponding linear module 704, and the linear module 704 drives each positioning pin 702 to move in the positioning pin groove 707 under the drive of the driving motor. As the positioning pins 702 move, a plate positioning interval is formed between the four positioning pins 702 protruding from the positioning pin grooves.

[0093] See also Figure 6A-6B As shown, Fig. 6A This is a schematic diagram of the structure of the upper surface of the plate and sealing film grabbing tooling of the present application; Figure 6B The schematic diagram of the structure of the lower surface of the plate and sealing film grabbing tool of the present application is shown in the figure. As shown in the figure, the plate and sealing film grabbing tool 8 includes a plate adsorption component and a sealing film adsorption component.

[0094] Please combine Fig. 6A and Figure 6BAs shown, the plate adsorption assembly is mainly used to absorb the plate. It includes components such as an adsorption connection plate 801, a first quick-plug plug 802, a suction cup mounting guide rod 803 and a suction cup 804. A robot connector 805 is provided on the adsorption connection plate 801, which is connected to the robot 6 through the robot connector 805 and moves with the operation of the robot 6. The first quick-plug plug 802 passes through the adsorption connection plate 801 and is connected to a suction cup mounting guide rod 803, and the end of the suction cup mounting guide rod 803 is connected to the suction cup 804. The first quick-plug plug 802 is connected to a vacuum generator to generate negative pressure and transmit it to the suction cup 804 through the suction cup mounting guide rod 803, so that the suction cup 804 can absorb the plate. A linear bearing 806 is sleeved on the outer side of each first quick-plug plug 802, and the linear bearing 806 is located on the upper surface of the adsorption connection plate 801. The linear bearing 806 guides the adsorption connection plate 801 to move linearly up and down under the drive of external force. A first limiting block 807 is provided at the upper end of the linear bearing 806 to limit the downward position of the adsorption connecting plate 801 .

[0095] Please combine Fig. 6A and Figure 6B As shown, the sealing film adsorption assembly is mainly used to absorb the sealing film. It includes an upper adsorption tooling 808, a second quick-plug plug 809, a lower adsorption tooling 810 and other components. The upper adsorption tooling 808 is provided with a second quick-plug plug 809, and the second quick-plug plug 809 is connected to the vacuum generator to generate a negative pressure. A boss 811 matching the shape of the sealing film is formed on the lower surface of the lower adsorption tooling 810, and a plurality of adsorption holes 812 are formed at intervals on the boss 811. A plurality of grooves are formed on the upper surface of the lower adsorption tooling 810, and the grooves are connected to each of the adsorption holes 812. The lower adsorption tooling 810 is connected to the upper adsorption tooling 808 through a sealing gasket, so that a sealed cavity is formed between the lower adsorption tooling 810, the upper adsorption tooling 808 and the sealing gasket, and a negative pressure is generated at the adsorption hole 812 to absorb the sealing film. The adsorption connection plate 801 is connected with the adsorption upper fixture 808 and the adsorption lower fixture 810 through four guide pillars 813, and a second stopper 814 is provided on the portion of the guide pillars 813 located on the upper surface of the adsorption connection plate 801; a spring 815 is sleeved between the guide pillars 813 located between the adsorption connection plate 801 and the adsorption upper fixture 808. The adsorption upper fixture 80 and the adsorption lower fixture 810 can move up and down along the guide pillars 813. A through hole is provided between the adsorption upper fixture 808 and the adsorption lower fixture 810, and the suction cup 804 can move up and down in the through hole along with the adsorption connection plate 801.

[0096] The bottom surface of the suction tool of the present application is provided with a boss matching the shape of the sealing film, which can not only protect the shape of the sealing film itself from being worn, but also absorb the sealing film well to prevent it from falling. In addition, the spring 815 installed on the outside of the guide column 813 of the present application can play an elastic buffering role when pressing the sealing film, so as to ensure that all positions of the sealing film can be compacted when it is pressed onto the plate.

[0097] like Figure 6B As shown, four guide grooves 816 are provided on the lower surface of the lower suction tool 810, and a guide pin 817 is correspondingly provided in a guide groove 816. The guide pin 817 is inserted into the positioning pin of the sealing film tooling plate when sucking the sealing film, so as to accurately suck the sealing film.

[0098] See also Figure 7 As shown, Figure 7 This is a schematic diagram of the structure of the sealing film tooling plate unloading module of the present application. The main function of the sealing film tooling plate unloading module 9 is to place the empty sealing film tooling plate 208 from which the sealing film has been taken away to the unloading position (i.e., the sealing film tooling plate unloading trolley module). The sealing film tooling plate unloading module 9 is installed on the equipment base 1 through the connecting plate 901. The picking cylinder 902 drives the four vacuum suction cups 904 installed on the suction cup mounting plate 903 to move up and down to pick up and place the empty sealing film tooling plate 208. The picking part is connected to the ball screw and the linear slide 908 through the cantilever support 905, the slide rail connecting plate 906, and the screw connecting plate 907; the servo motor 909 drives the ball screw through the synchronous belt to drive the cylinder picking part to move, the belt guard 910 and the screw guard 911 provide protection for the moving parts, and the protective drag chain 912 provides protection for the moving wiring harness.

[0099] Figure 8 This is a schematic diagram of the plate blanking module structure of this application. Figure 8As shown, the electrode plate unloading module 10 of the present application includes a material receiving platform 1001, a linear slide 1002, a guide rod 1003, a floating material picking plate 1004, a vacuum adsorption module 1010, a top plate 1005 and other components. The material receiving platform 1001 is fixed to the equipment base 1 through a material receiving mounting frame 1006. The material receiving platform 1001 serves as a material unloading area for the electrode plate after film pasting. The linear slide 1002 is fixed to the equipment base 1, and a support slider 1007 is provided on the linear slide 1002, and the bottom of the guide rod 1003 is fixed on the support slider 1007. A linear bearing 1008 is provided on the guide rod 1003, and the linear bearing 1008 is connected to the floating material picking plate 1004, and the floating material picking plate 1004 is driven by the material picking cylinder 1009 to move up and down along the guide rod 1003 under the action of the linear bearing 1008. The floating feeding plate 1004 is provided with a vacuum adsorption module 1010, which drives the vacuum adsorption module to absorb the electrode plate to complete the up and down movement of the film-attached electrode plate. The top plate 1005 is fixed above the guide rod 1003, and a vacuum generator 1011 is provided on the top plate 1005, and the vacuum generator 1011 is connected to the vacuum adsorption module 1010. Driven by the shift cylinder 108, the floating feeding plate 1004 moves to the top of the electrode plate positioning module 7 along with the support slider 1007, absorbs the electrode plate with the film attached, transfers it back to the top of the material receiving platform 1001, and then places the electrode plate on the material receiving platform 1001. The protective drag chain 1012 provides protection for the moving wire harness. The floating feeding plate 1004 is provided with a detection sensor 1013, which is used to detect the position information of the floating feeding plate 1004.

[0100] Combination Figure 1 As shown, the present application also provides a plurality of height sensors 11 on the base of the equipment, which are installed above the material bins of the sealing film loading trolley module 2 and the sealing film tooling plate unloading trolley module 3 to detect the material level in the material bins of the sealing film loading trolley module 2 and the sealing film tooling plate unloading trolley module 3.

[0101] In addition, since the robot is running at a high speed and there are certain safety hazards, the overall design of the equipment includes an equipment shell 1201 and a safety protection door 1202. The operator can observe the operation of the equipment through a transparent acrylic observation window 1203. The operation of the equipment is completed through a touch screen 1204, that is, the touch screen is connected to a control computer, and the operation of each component is regulated by the control computer.

[0102] The automatic film laminating machine for bipolar plates of fuel cells of the present application effectively improves the efficiency of the process of laminating the sealing film of the plates and the utilization rate of the film, reduces the surface contamination of the plates and solves the problem of uneven surface after laminating. Because the grabbing and pressing of the sealing film of the present invention are all completed by robots, compared with the efficiency of laminating a sealing film in two minutes during manual operation, the time for laminating a sealing film of the present device is only 30 seconds, and its efficiency is four times higher than that of manual operation. In addition, the repetition accuracy of robot laminating is high, and the sealing film laminating yield rate is also much higher than that of manual operation. In addition, because the sealing film of the present device is pressed from top to bottom, and an elastic buffer device is provided on the pressing tooling, all positions of the sealing film can be evenly stressed and contact the plates, which solves the problem that the sealing film is not pressed flat when the sealing film is pressed from bottom to top on the manual press machine, and the sealing film that has just been bonded is peeled off from the plates due to the uncured glue.

[0103] The above-described embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. Equivalent changes and modifications made to the present invention by those skilled in the art should all fall within the scope of the claims attached to the present invention.

Claims

1. A fuel cell bipolar plate automatic film laminating machine, characterized in that: include: Equipment base; A sealing film loading trolley module is positioned at one side of the equipment base, and is used to provide sealing film. The sealing film loading trolley module is provided with stacked sealing film tooling plates, and the sealing film is placed on the sealing film tooling plates; A sealing film tooling lifting module, which is fixed in the equipment base and extends out of the sealing film loading trolley module to lift the stacked sealing film tooling plates to a mold taking height; A plate belt feeding module is fixed to the upper surface of the equipment base, and the front end of the plate belt feeding module is connected to a previous station to transport the plate coated with glue at the previous station to a plate removal position; A robot module is fixed to the upper surface of the equipment base, the robot module is connected to a plate and sealing film grabbing tool, and the plate, sealing film and sealing film are grabbed by the plate and sealing film grabbing tool; A plate positioning module, which is fixed to the upper surface of the equipment base and is located within the operating range of the robot, and is used to place and accurately position the plate to be filmed grabbed by the robot from the plate taking position; A sealing film tooling plate unloading module is fixed to the upper surface of the equipment base and is located between the robot module and the sealing film loading trolley module. The sealing film tooling plate unloading module grabs the sealing film tooling plate from which the sealing film has been taken away, and transports the sealing film tooling plate to a sealing film tooling plate unloading trolley; A plate unloading module is fixed to the upper surface of the equipment base, and the plate unloading module moves and grabs the plate on which the film has been pasted on the plate positioning module, and transports the plate to the plate unloading area; The plate and sealing film grabbing tool comprises: a plate adsorption component and a sealing film adsorption component, wherein: The plate adsorption assembly comprises: An adsorption connection plate, on which a robot connection piece is provided, and through which the robot connection piece is connected to the robot; A first quick-insert plug, which passes through the adsorption connection plate and is connected to a suction cup installation guide rod, and the first quick-insert plug is connected to a vacuum generator to generate negative pressure to supply the suction cup installation guide rod; The suction cup installation guide rod has a terminal end connected to the suction cup, and the suction cup installation guide rod transmits the negative pressure to the suction cup so that the suction cup can absorb the electrode plate; Linear bearings, which are sleeved one by one on the outer side of the first quick-connect plug and located on the upper surface of the adsorption connection plate, and the linear bearings guide the adsorption connection plate to move linearly up and down under the drive of external force; A first limit block, which is arranged at the upper end of the linear bearing; The sealing film adsorption component comprises: Adsorbing the upper tooling, on which a second quick-plug is provided, the second quick-plug is connected to the vacuum generator to generate a negative pressure; The lower adsorption tooling has a boss on its lower surface that matches the shape of the sealing film, and a plurality of adsorption holes are formed on the boss at intervals; a plurality of grooves are formed on the upper surface of the lower adsorption tooling, and the grooves are connected to the adsorption holes; The lower adsorption tooling is connected to the upper adsorption tooling via a sealing gasket, so that a sealed cavity is formed between the lower adsorption tooling, the upper adsorption tooling and the sealing gasket; A guide post connects the adsorption connection plate with the adsorption upper tooling and the adsorption lower tooling, and a second stopper is provided on the portion of the guide post located on the upper surface of the adsorption connection plate; a spring is sleeved between the guide post located between the adsorption connection plate and the adsorption upper tooling; A through hole is provided between the upper adsorption tooling and the lower adsorption tooling, and the suction cup can move up and down in the through hole along with the adsorption connecting plate; The electrode plate unloading module includes: a material receiving platform, which is fixed to the equipment base through a material receiving mounting frame; a linear slide rail, which is fixed to the equipment base, and a supporting slider is provided on the linear slide rail; a guide rod, the bottom of which is fixed to the supporting slider, and a linear bearing is provided on the guide rod, and the linear bearing is connected to a floating material picking plate, and the floating material picking plate is driven by a material picking cylinder to move up and down along the guide rod under the action of the linear bearing; a floating material picking plate is provided with a vacuum adsorption module; a top plate, which is fixed above the guide column, and a vacuum generator is provided on the top plate, and the vacuum generator is connected to the vacuum adsorption module; the floating material picking plate is driven by the shift cylinder to move to the top of the electrode plate positioning module along with the supporting slider, and the electrode plate with the film pasted is sucked and transferred back to the top of the material receiving platform, and then the electrode plate is placed on the material receiving platform; One side of the equipment base is provided with two stations connected to the sealing film loading trolley and a sealing film unloading trolley with the same structure for unloading; two sets of guide mechanisms are provided on the side, and the guide mechanisms include: Two guide rods with a space for accommodating a sealing film loading trolley or a sealing film unloading trolley in the middle, which are fixed at the lower section of the side edge, and the guide rods extend outward; The guide seat is driven up and down by the guide cylinder.

2. The automatic film laminating machine for bipolar plates of fuel cells according to claim 1, characterized in that: The sealing film loading trolley comprises: A vehicle body with casters, a top mounting frame being fixed on the top of the vehicle body through a supporting column, and guide rods being fixed at the four corners of the vehicle body respectively; A tooling pallet, which is fixed on the four guide rods through linear bearings, and the tooling pallet moves linearly up and down along the guide rods under the action of external force; at least one group of sealing film tooling plates is stacked on the tooling pallet; A fixed positioning rod, which is fixed on the vehicle body and is respectively arranged at the front end of each set of sealing film tooling plates; An adjusting and positioning mechanism comprises: Adjustment positioning rods, which are respectively arranged at the rear end of each group of the sealing film tooling plates and are fixed on a positioning rod adjustment device after passing through the adjustment holes arranged on the tooling support plates; The positioning rod adjustment device includes a slide rail arranged on the upper surface of the vehicle body, a slider fixed on the slide rail, and an adjustment part fixed on the upper surface of the vehicle body. The adjustment part includes an adjustment handle and a ball screw connected to the adjustment handle. The slider is driven to move on the slide rail by rotating the adjustment handle. The lower end of the adjustment positioning rod is fixed on the slider.

3. The automatic film laminating machine for bipolar plates of fuel cells according to claim 2, characterized in that: The top mounting frame is provided with a top guide rod positioning plate, and the top guide rod positioning plate abuts against the top end of the adjustment positioning rod; anti-collision blocks are provided on the four edges of the vehicle body, and positioning blocks and guide rollers are provided on the edge connected to the equipment base.

4. The automatic film laminating machine for bipolar plates of fuel cells according to claim 2, characterized in that: The sealing membrane tooling lifting module comprises: a height sensor, which is arranged on the main body of the equipment and is used to detect the height of the sealing film tooling plates stacked in the sealing film feeding trolley module and transmit the height value to a lifting mechanism; The lifting mechanism comprises: A fixing bracket, to which a mounting base is connected, and fixed in the equipment base through the fixing bracket; A linear slide rail is provided on one side of the mounting seat; A motor is fixed on the fixed bracket, and a coupling and a ball screw are provided on the motor, and the ball screw is fixed in the mounting seat; The ejector plate is fixed on the ball screw through a nut seat, and the ejector plate moves up and down along the linear slide rail driven by the nut seat and the ball screw; the ejector plate extends under the tooling plate so as to lift the tooling plate to an appropriate height position according to the height value transmitted by the height sensor.

5. The automatic film laminating machine for fuel cell bipolar plates according to claim 1, characterized in that: The plate belt feeding module comprises: A conveyor belt mechanism is arranged on the mounting bracket, wherein the front end of the conveyor belt mechanism is connected to the previous station, and the rear end thereof extends to the electrode plate position; A feed detection sensor disposed at the front end of the conveyor belt mechanism, the feed detection sensor being fixed on an adjustment bracket; a plate stopper disposed at the end of the conveyor belt mechanism; and A sensor is provided between the pole plate stopper and the end of the conveyor belt for detecting whether there is a pole plate at the stop position.

6. The automatic film laminating machine for bipolar plates of fuel cells according to claim 1, characterized in that: The plate positioning module comprises: A positioning table, which is fixed on a base by four equal-height support columns; the positioning table is provided with symmetrical positioning pin grooves from four corners inward, each of which includes a vertical positioning pin groove and a horizontal positioning pin groove; Positioning pins are arranged in a positioning pin groove in a one-to-one correspondence, and each two adjacent horizontal positioning pins or vertical positioning pins are installed in the positioning pin groove by a mounting base, and the mounting base is arranged below the positioning table; The horizontal mounting base or the vertical mounting base is respectively connected to the corresponding linear modules, and the linear modules drive each of the positioning pins to move in the positioning pin groove under the drive of the driving motor; As the positioning pins move, a plate positioning interval is formed between the positioning pins protruding from the positioning pin grooves.

7. The automatic film laminating machine for bipolar plates of fuel cells according to claim 6, characterized in that: Four guide grooves are arranged on the lower surface of the lower adsorption tooling, and a guide pin is arranged in a corresponding guide groove. The guide pin is inserted into the positioning pin of the plate positioning module when the plate is adsorbed.

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