Fuel cell bipolar plate automatic glue coating machine

Abstract

The present invention discloses an automatic gluing machine for fuel cell bipolar plates, comprising: a base, a plate trolley loading module, a silo lifting module, a plate loading and unloading conveying module, a plate loading and grabbing module, a plate unloading and grabbing module, a plate positioning and edge pressing module, a robot gluing module, and a conveyor belt transmission module. The present invention integrates loading, positioning, gluing, and unloading on a base, and adopts an automatic control method to avoid the problems of gluing position deviation and low yield caused by manual positioning, and at the same time avoids the potential safety hazard caused by the overlap of the manual operation range and the mechanical operation range, and can be applied to the gluing of different types of plates, reducing cost requirements.

Description

Technical Field

[0001] The invention relates to the technical field of fuel cell production, and more specifically to an automatic glue coating machine for fuel cell bipolar plates. 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 fitting of the plates and the sealing strips, and the plates and the sealing strips are bonded by glue.

[0003] The glue coating line of bipolar plates is complex in structure and requires a uniform glue width of less than 1mm, which cannot be completed manually. The main method at present is to rely on glue coating equipment. However, the existing equipment generally operates manual loading, positioning, pressing, and unloading. Considering the convenience of loading and unloading, a large gap is reserved for the positioning of the plate, which causes the deviation of the glue coating position and a high defect rate. On the other hand, since each step of the operation depends on manual operation, the production efficiency is relatively low. In addition, since the glue coating robot has a high speed when coating, the loading and unloading area of ​​the equipment operation and the trajectory range of the robot overlap. This creates a safety hazard that if the operation is wrong, it is easy for the robot to hit people.

[0004] With the development of the entire industry, there will be more and more types of plates. The glue coating equipment suitable for a single product will not be able to meet the factory's production needs for a wide variety of plates. If more equipment is added, the factory's equipment management costs and procurement costs will increase, which will increase the burden on the company. Summary of the invention

[0005] Due to the above-mentioned technical defects in the prior art, the present application proposes an automatic gluing machine for fuel cell bipolar plates, which aims to solve the problem of gluing position deviation caused by manual operation in the prior art and the safety hazard caused by the overlap of manual operation and the trajectory range of the gluing robot.

[0006] In order to achieve the above technical objectives, this application adopts the following technical means:

[0007] Fuel cell bipolar plate automatic glue coating machine, including:

[0008] Base;

[0009] A plate trolley loading module, which is movably connected to one side of the base and is used to provide the plates to be coated with glue, and the plate trolley loading module includes a workpiece tray, on which the plates to be coated with glue are stacked;

[0010] A silo lifting module is fixed on the base and is close to the plate trolley loading module. The silo lifting module extends into the plate trolley loading module to lift the workpiece tray upward to a material taking height;

[0011] A plate loading and unloading conveying module is fixed on the base, and a plate loading and unloading conveying module and a plate unloading grasping module are connected to the plate loading and unloading conveying module. The plate loading and unloading conveying module drives the plate loading and grasping module to move above the workpiece tray to grasp the plate to be coated with glue and conveys the plate loading and grasping module to above a plate positioning and pressing module; the plate loading and unloading conveying module drives the plate unloading grasping module to move above the plate positioning and pressing module to grasp the plate that has been coated with glue and moves the plate unloading grasping module to a conveyor belt transmission module;

[0012] The plate positioning and edge pressing module is fixed on the base and is located within the moving range of the plate loading and grabbing module and the plate unloading and grabbing module. The plate positioning and edge pressing module is used to fix the plate to facilitate accurate gluing;

[0013] A robot gluing module, which is fixed on the base, and applies glue to the electrode plate fixed on the substrate positioning and edge pressing module;

[0014] The conveyor belt transmission module is fixed on the base, and receives the electrode plates that have been glued and placed by the electrode plate unloading and grabbing module and transmits the electrode plates to the next workstation.

[0015] Preferably, the plate trolley loading module comprises:

[0016] Bottom bracket;

[0017] Four guide columns, which are fixed on the bottom bracket;

[0018] The workpiece pallet is fixed to the guide column via a linear axis and moves up and down along the guide column under the action of the silo lifting module; the workpiece pallet is provided with horizontal and vertical guide grooves;

[0019] An upper plate, which is fixed to the upper ends of the four guide pillars; a notch is provided on the upper plate to facilitate the lifting of the silo lifting module;

[0020] A first positioning rod, which passes through each of the vertical guide grooves one by one and the bottom is connected to a first adjuster, and the movement of the first positioning rod in the vertical guide groove is adjusted by the movement of the first adjuster. The top of the first positioning rod is connected to a material error tray, and the material error tray is fixed to the upper plate by screws;

[0021] A second positioning rod, which passes through each of the transverse guide grooves one by one and the bottom is connected to a second adjuster, and the movement of the second positioning rod in the transverse guide groove is adjusted by the movement of the second adjuster. The top of the second positioning rod is connected to a positioning fixture, and the positioning fixture is connected to the upper plate;

[0022] A third positioning rod, which is fixed on the bottom bracket, and an upper end portion thereof is fixed to two ends of the notch of the upper plate;

[0023] The space between the first positioning rod, the second positioning rod and the third positioning rod is the positioning space for the electrode plate to be coated with glue.

[0024] Preferably, a plurality of lateral guide wheels are provided along the edge of the upper surface of the bottom bracket; and a positioning sleeve and a buffer pad are provided at an edge connected to the base.

[0025] Preferably, two upright posts are provided on the bottom bracket, and handles are provided on the upright posts.

[0026] Preferably, the silo lifting module comprises:

[0027] The reference plate has two ends of its lower surface provided with a bracket respectively, and is fixed to the base through the bracket;

[0028] A linear slide rail is provided on the lower surface of the reference plate and is hung on one side of the base and fixed to the base through a fixing bracket, wherein the linear slide rail corresponds to the notch of the upper plate of the plate trolley feeding module; a ball screw is provided in the linear slide rail, and the ball screw is connected to a servo motor through a coupling;

[0029] The pallet lifting table is fixed on the ball screw through a screw nut seat and moves up and down along the linear slide rail as driven by the servo motor; the pallet lifting table extends into the bottom of the workpiece pallet.

[0030] Preferably, the plate loading and unloading conveying module comprises:

[0031] The external bracket has a fixed column at the bottom, a transverse through groove is provided on the front surface of the external bracket, and slide rails are arranged along both sides of the through groove, and a plate loading and unloading grabbing drive and a plate unloading grabbing drive are provided in the external bracket;

[0032] The plate material grabbing drive comprises:

[0033] A ball screw fixed in the external bracket;

[0034] A servo motor connected to one end of the ball screw;

[0035] A screw nut seat, which is connected to the ball screw, and the connecting end of the screw nut seat passes through the through slot and is connected to the plate material grabbing module, and the servo motor drives the plate material grabbing module to move along the slide rail;

[0036] The plate unloading and grabbing drive comprises:

[0037] A feeding drive cylinder, which is fixed in the external bracket;

[0038] A cylinder connecting piece is connected to the material unloading driving cylinder. The cylinder connecting piece passes through the through slot and is connected to the plate unloading grabbing module. The cylinder connecting piece moves along the slide rail driven by the material unloading driving cylinder.

[0039] Preferably, the plate positioning and edge pressing module comprises:

[0040] A positioning platform, which is fixed on a bottom mounting table through a column, and the positioning platform is provided with two groups of horizontal positioning grooves and two groups of vertical positioning grooves;

[0041] Two sets of long side positioning structures, which respectively include:

[0042] A long side pressing block, which is located on the upper surface of the positioning platform, and the lower surface of the long side pressing block is connected to two long side positioning blocks, and the long side positioning blocks pass through the vertical positioning groove;

[0043] A long side pressing cylinder is connected to the long side positioning block via a long side pressing cylinder seat, and the long side pressing cylinder drives the long side pressing block to move up and down;

[0044] Two sets of short side positioning structures, respectively including:

[0045] A short side pressing block, which is located on the upper surface of the positioning platform, and the lower surface of the short side pressing block is connected to two short side positioning blocks, and the short side positioning blocks pass through the transverse positioning groove;

[0046] A short side pressing cylinder is connected to the short side positioning block via a short side pressing cylinder seat, and the short side pressing cylinder drives the short side pressing block to move up and down;

[0047] The long side positioning module and the short side positioning module are respectively arranged on the bottom mounting table; the two groups of long side positioning structures are respectively fixed to the two ends of the long side positioning module through the long side pressing cylinder seats, and the long side positioning structures are driven to move forward and backward by the long side positioning module; the two groups of short side positioning structures are respectively fixed to the two ends of the short side positioning module through the short side pressing cylinder seats, and the short side positioning structures are driven to move left and right by the short side positioning module.

[0048] Preferably, the plate loading and grabbing module has the same structure as the plate unloading and grabbing module, and both include:

[0049] A plate grabbing substrate, one end of which is connected to a slide rail connecting plate, and the other end of which is connected to a material taking cylinder on its upper surface;

[0050] A rotating cylinder is connected to the bottom of the material taking cylinder, and a suction cup assembly is connected to the bottom of the rotating cylinder;

[0051] Monitoring components, which include

[0052] A camera assembly, comprising a misplaced camera and a position adjustment mechanism; the position adjustment mechanism comprises two end brackets fixed on the electrode plate grabbing substrate through a mounting bracket, a sliding rod is provided between the two end brackets, an adjustment block is connected to the sliding rod, and the misplaced camera is connected to the adjustment block through a mounting seat;

[0053] A first sensor, which is disposed on the mounting seat and is used to detect the position height of the electrode stack on the electrode positioning and edge pressing module;

[0054] The second sensor is arranged on the suction cup assembly and is used to detect whether the electrode plate is always on the suction cup assembly after the suction cup assembly takes the material.

[0055] Preferably, the suction cup assembly includes a suction cup mounting plate and a sponge suction cup fixed on the suction cup mounting plate.

[0056] Preferably, an anti-collision mechanism is installed on the pole plate grabbing substrate, and the anti-collision mechanism includes an anti-collision mounting block fixed on the pole plate grabbing substrate and an anti-collision block fixed at the front end of the anti-collision mounting block.

[0057] Preferably, it further includes a control system, which controls the operation of the plate trolley loading module, the silo lifting module plate, the loading and unloading conveying module, the plate loading grabbing module, the plate unloading grabbing module, the plate positioning and pressing module and the conveyor belt transmission module.

[0058] Due to the adoption of the above-mentioned technical solution, the present application integrates loading, positioning, gluing and unloading onto one base, and adopts automatic control to avoid the problems of gluing position deviation and low yield caused by manual positioning. At the same time, it avoids the safety hazard caused by the overlap of manual operation range and mechanical operation range. It can be used for the processing of different types of plates and reduce cost requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 This is a schematic diagram of the internal assembly of each module of this application;

[0060] Figure 2A-2B This is a structural schematic diagram of the plate trolley loading module of the present application;

[0061] Figure 3 This is a schematic diagram of the structure of the silo lifting module of this application;

[0062] Figure 4 This is a schematic diagram of the plate loading and unloading conveying module of the present application;

[0063] Figure 5 This is a schematic diagram of the structure of the plate material grabbing module of the present application;

[0064] Figure 6 This is a schematic diagram of the structure of the plate positioning and edge pressing module of the present application;

[0065] Figure 7 This is a schematic diagram of the structure of the conveyor belt transmission module of the present application;

[0066] Figure 8 This is a schematic diagram of the structure of the base of this application;

[0067] Fig. 9 This is a schematic diagram of the overall appearance of this application. DETAILED DESCRIPTION

[0068] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0069] The fuel cell bipolar plate automatic gluing machine of the present application includes a base 1, a plate trolley loading module 2, a silo lifting module 3, a plate loading and unloading conveying module 4, a plate loading and grabbing module 5, a plate unloading and grabbing module 6, the plate positioning and edge pressing module 7, a robot gluing module 8 and the conveyor belt transmission module 9 and other modules.

[0070] See also Figure 1As shown, the base 1 serves as a support for the installation of various components. The plate trolley loading module 2 is movably connected to one side of the base 1, and the plate trolley loading module 2 is used to centrally provide uncoated plates. The silo lifting module 3 is fixed on the base 1 near the side of the substrate trolley loading module 2 and extends into the plate trolley loading module 2, which is used to assist the plate trolley loading module 2 in loading. The plate loading and unloading conveying module 4 is arranged on the base 1 and spans the loading area, the positioning area and the unloading area, and is connected to the plate loading grasping module 5 and the plate unloading grasping module 6, which is used to drive the plate loading grasping module 5 to the loading area (i.e., above the plate trolley loading module 1) to grasp the plate to be coated with glue and place it in the positioning area (i.e., the plate positioning and pressing edge module 7), or drive the plate unloading grasping module 6 to grasp the plate that has been coated with glue and place it on the conveyor belt transmission module 9, and transport the plate that has been coated with glue to the next station. The plate positioning and edge pressing module 7 is located on the base and between the silo lifting module 3, the plate loading and unloading conveying module 4, the conveyor belt transmission module 9 and the robot gluing module 8, which reduces the floor space and facilitates the operation of each module. Each module is controlled by a control system. The detailed structure of each module is described below in detail in the respective figures.

[0071] See also Figure 2A and Figure 2B As shown, it is a schematic diagram of the structure of the plate trolley loading module of the present application. The plate trolley loading module is a structure with adjustable positioning size, which can be applied to various types of plates. The entire plate trolley loading module 2 can be pulled out of the entire automatic glue coating machine, and the material is loaded outside the equipment, which is safer and more coordinated with the automation of the equipment.

[0072] like Figure 2A As shown, the plate trolley loading module 2 of the present application includes components such as a bottom bracket 201, a guide column 202, a workpiece pallet 203, an upper plate 204, a first positioning rod 205, a second positioning rod 206 and a third positioning rod 207. The bottom bracket 201 is used to support the installation of various components and serve as a carrier for transportation. Casters 208 are provided at the bottom of the bottom bracket 201, and two columns 209 are provided on the bottom bracket 201. Handles 210 are provided on the columns 209 to facilitate transportation and movement. Four guide columns 202 are fixed to the bottom bracket 201, and linear shafts are provided on the guide columns 202. The workpiece pallet 203 is connected to the guide columns 202 through the linear shafts. Under the action of the silo lifting module, the workpiece pallet 203 moves up and down along the guide columns 202. As shown Figure 2A and Figure 2BAs shown, two sections of horizontal guide grooves 211 and two sections of vertical guide grooves 211 are provided on the workpiece pallet 203. The upper plate 204 is fixed to the upper ends of the four guide columns 202. And a notch is provided on the upper plate 204 to facilitate the lifting of the silo lifting module 3. Two first positioning rods 205 pass through the vertical guide grooves 211 respectively and the bottom of the first positioning rod 205 is connected to a first adjuster 212, and the movement of the first positioning rod 205 in the vertical guide groove 211 is adjusted by the movement of the first adjuster 212. In addition, a material error tray 213 is connected to the top of the first positioning rod 205 and the upper plate, and the first positioning rod 205 is further stabilized by the material error tray. When adjustment is needed, the existing material error tray 213 is removed, and the material error tray 213 is replaced after adjusting the first adjuster 212. The two second positioning rods 206 respectively pass through the transverse guide groove 211 and are connected to a second adjuster 214 at the bottom. The second positioning rod 206 is adjusted to move in the transverse guide groove 211 by the movement of the second adjuster 214. The top of the second positioning rod 206 is connected to a positioning fixture 215, which is connected to the upper plate 213. The positioning fixture 215 can further stabilize the second positioning rod 206. Two third positioning rods 207 are fixed to the bottom bracket 201, and their upper ends are fixed to the two ends of the notch of the upper plate. The third positioning rod 207 is a relatively fixed positioning structure, while the first positioning rod 205 and the second positioning rod 206 are adjustable positioning structures. The space between the first positioning rod 205, the second positioning rod 206 and the third positioning rod 207 is the positioning space for the plate 219 to be coated with glue, and the plate to be coated with glue is neatly stacked in the positioning space.

[0073] Also, see Figure 2A As shown, a plurality of lateral guide wheels 216 are provided along the edge of the upper surface of the bottom bracket 201, and the lateral guide wheels 216 play a guiding role when connected with the base 1. A positioning sleeve 217 and a buffer pad 218 are provided at an edge of the bottom bracket 201 connected with the base 1. A protective cover 220 is provided on the upper surface of the bottom bracket 201, and the protective cover 220 protects the first regulator, the second regulator and other components.

[0074] See also Figure 3As shown, the silo lifting module 3 includes components such as a reference plate 301, a linear guide rail 302, a ball screw 303, a servo motor 304 and a tray lifting table 305. A bracket 306 is provided at each end of the lower surface of the reference plate 301, and the reference plate 301 is fixed to the base 1 through the bracket 306. The linear guide rail 302 is provided on the lower surface of the reference plate 301 and hangs on one side of the base 1 and is fixed to the base 1 through a fixed bracket 307. The linear guide rail 302 corresponds to the notch of the upper plate 204 of the plate trolley loading module 2. A ball screw 303 is provided in the linear guide rail 302, and the ball screw 303 is connected to a servo motor 304 through a coupling 308. The tray lifting table 305 is fixed to the ball screw 303 through a screw nut seat 309, and moves up and down along the linear guide rail 302 as driven by the servo motor 304. The tray lifting table 305 extends into the bottom of the workpiece tray 203 .

[0075] See also Figure 4 As shown, the plate loading and unloading conveying module 4 includes an external bracket 401, a fixed column 402, a plate loading grabbing drive and a plate unloading grabbing drive. Figure 4 Combined with Figure 1 As shown, the bottom of the external support 401 is provided with a fixed column 402, and the fixed column 402 can be designed with different heights according to actual needs. The front surface of the external support 401 is provided with a transverse through groove 403, and slide rails 404 are arranged along both sides of the through groove 403. The external support 401 is provided with a plate loading and unloading grabbing drive. Figure 4 As shown, the pole plate material grabbing drive includes: a ball screw 404 fixed in the external bracket 401; and a servo motor 405 fixedly connected to one end of the ball screw 404; a screw nut seat 408 connected to the ball screw 404 and the pole plate material grabbing module 5 connected to the connecting end of the screw nut seat 404 passing through the through groove. The pole plate material grabbing module 5 is driven by the servo motor 405 to move along the slide rail 404. The movement area of ​​the pole plate material grabbing module 5 is from the loading area to the positioning area, that is, the pole plate to be coated is grabbed from the loading area (that is, above the pole plate trolley loading module 1) and placed in the positioning area (that is, the pole plate positioning and edge pressing module 7). Please refer to Figure 4As shown, the plate unloading and grabbing drive includes: an unloading driving cylinder 406 fixed in the external bracket 401; and a cylinder connector 407 connected to the unloading driving cylinder 406. The cylinder connector 407 passes through the through slot 403 and is connected to the plate unloading and grabbing module 6, and moves along the slide rail 403 driven by the unloading driving cylinder 406. The movement area of ​​the plate unloading and grabbing module 6 is from the positioning area to the conveyor belt transmission module 9, that is, the plate that has been glued is grabbed from the positioning area (that is, the plate positioning and edge pressing module 7) and placed on the conveyor belt transmission module 9. The loading harness protection drag chain 409 and the unloading harness protection drag chain 410 protect the harnesses of the upper and lower material grabbing modules respectively.

[0076] Since the structures of the electrode plate loading and grabbing module 5 and the electrode plate unloading and grabbing module 6 are the same, in this embodiment, only the electrode plate loading and grabbing module 5 is selected as an example to describe its structure in detail.

[0077] See also Figure 5 The figure is a schematic diagram of the structure of the plate material grabbing module of the present application. The plate material grabbing module 5 comprises: a plate grabbing substrate 501, a slide rail connecting plate 502, a material taking cylinder 503, a rotating cylinder 504, a suction cup assembly 505 and a monitoring assembly. Figure 5 As shown, the plate grabbing substrate 501 serves as the installation reference for the entire plate loading module 5. A slide rail connecting plate 502 is connected to one end of the plate grabbing substrate 501, and the slide rail connecting plate 502 is connected to the screw nut seat 405 driven by the plate loading grabbing drive (or the cylinder connecting piece 407 driven by the plate unloading grabbing drive) so as to move under the drive of the plate unloading and conveying module 4. A material picking cylinder 503 is connected to the upper surface of the other end of the plate grabbing substrate 501, and a rotating cylinder 504 is connected to the bottom of the material picking cylinder 503, and a suction cup assembly 505 is connected to the bottom of the rotating cylinder 504. The material picking cylinder 503 drives the rotating cylinder 504 and the suction cup assembly 505 to move up and down together so that the suction cup assembly 505 can suck the plate; the rotating cylinder 504 drives the suction cup assembly 505 to turn. The plate grabbing substrate 501 is provided with an anti-collision mechanism, which includes an anti-collision mounting block 513 fixed on the plate grabbing substrate 501 and an anti-collision block 514 fixed at the front end of the anti-collision mounting block 513, and the anti-collision block 514 plays a buffering role. The monitoring component is used to monitor whether the entire process from sucking the plate to placing the plate is normal and correct. Figure 5As shown, the monitoring component includes a camera component, a first sensor 506 and a second sensor 507. The camera component includes a misplaced camera 508 and a position adjustment mechanism. The position adjustment mechanism includes two end brackets 509 fixed on the plate grabbing substrate 501 through mounting brackets 509, a slide bar 510 is provided between the two end brackets 509, and an adjustment block 511 is connected to the slide bar 510. The misplaced camera 508 is connected to the adjustment block 511 through a mounting seat 512, and the position adjustment of the misplaced camera 508 is completed by moving the adjustment block 511 on the slide bar 510. The camera component is mainly used to monitor whether the plate sucked by the suction cup assembly is placed in the wrong position to reduce the error rate. The first sensor 506 is arranged on the mounting seat 512, and is used to detect the position height of the plate stacking on the plate trolley feeding module 2 (or the plate positioning and pressing module 7). If the height reaches a set value, the suction cup assembly sucks the plate on the plate trolley loading module 2 (or the plate positioning and pressing module 7). After sucking, the second sensor 507 arranged on the suction cup assembly 505 monitors the position status of the plate.

[0078] In the above, the suction cup assembly 505 is composed of a suction cup mounting plate 5051 and a sponge suction cup 5052. The suction cup mounting plate 5051 is connected to the rotating cylinder 504, and the sponge suction cup 5052 contacts the electrode plate and forms a sealed cavity with the electrode plate surface by compression force, thereby sucking up the electrode plate under the action of vacuum force.

[0079] See also Figure 6 As shown, Figure 6 Schematic diagram of the plate positioning and edge pressing module structure of the present application. The plate positioning and edge pressing module 7 of the present application is used to accurately position the uncoated plate. The plate positioning and edge pressing module 7 shown includes a positioning platform 701, two groups of long side positioning structures, two groups of short side positioning structures, a long side positioning module and a short side positioning module. Figure 6As shown, the positioning platform 701 is fixed on a bottom mounting table 703 through a column 702. Two groups of horizontal positioning grooves 704 and two groups of vertical positioning grooves 705 are provided on the positioning platform 701. Two groups of long side positioning structures are respectively arranged in the two groups of vertical positioning grooves 705. The long side positioning structure includes a long side pressing block 706 and a long side pressing cylinder 707. The long side pressing block 706 is located on the upper surface of the positioning platform 701, and the lower surface of the long side pressing block 706 is connected to two long side positioning blocks 708, and the long side positioning block 708 passes through the vertical positioning groove 705. The bottom of the long side positioning block 708 is connected to the long side pressing cylinder 707 through a long side pressing cylinder seat 709, and the long side pressing block 706 is driven to move up and down by the long side pressing cylinder 707 to adjust the up and down position of the long side pressing block 706 relative to the positioning platform 701. The two groups of long side positioning structures are respectively fixed to the two ends of the long side positioning module 710 through the long side pressing cylinder seat 709, and the two long side positioning structures are driven to move forward and backward respectively through the long side positioning module 710 to adjust the spacing between the two long side positioning structures. The two groups of short side positioning structures are respectively arranged in the two groups of transverse positioning grooves 704. The short side positioning structure includes a short side pressing block 711 and a short side pressing cylinder 712. The short side pressing block 711 is located on the upper surface of the positioning platform 701, and the lower surface of the short side pressing block 711 is connected to two short side positioning blocks 713, and the short side positioning block 713 passes through the transverse positioning groove 704. The short side positioning block 713 is connected to the short side pressing cylinder 712 through the short side pressing cylinder seat 714. The short side pressing cylinder 712 drives the short side pressing block 711 to move up and down to adjust the upper and lower positions of the short side pressing block 711 relative to the positioning platform 701. The two groups of short side positioning structures are respectively fixed to the two ends of the short side positioning module 715 through the short side pressing cylinder seat 714, and the short side positioning module drives the short side positioning structure to move left and right to adjust the distance between the two short side positioning structures.

[0080] See also Figure 7 As shown, Figure 7 Schematic diagram of the structure of the conveyor belt transmission module 9 of the present application. The conveyor belt transmission module 9 is connected to the base 1 through a long column 901 and a short column 902. The conveyor belt 903 is installed on a support plate 905 through a height adjustment block 904. The mounting plate 905 is connected to the long column 901. The in-position sensor 907 installed on the sensor mounting seat 906 can sense the plate passing on the conveyor line and determine whether there is a plate on the conveyor belt 903. The sensor position adjustment component 908 can adjust the position of the in-position sensor 907.

[0081] See also Figure 8 As shown, Figure 8The schematic diagram of the structure of the base of the present application. The base 1 is equipped with casters 101, the top is an installation reference table 102, and the left guide block 104, the right guide block 105, and the side guide block 106 installed on the guide block mounting seat 103 provide pre-guiding for the plate loading trolley module. After the trolley is pushed into place, the positioning cylinder 107 drives the positioning pin 109 installed on the positioning pin mounting plate 108 to be inserted into the positioning sleeve 217 to accurately position the plate trolley loading module. The bottom protective cover 110 provides protection for the electrical components installed at the bottom.

[0082] In addition, the present application further includes a control system, through which the plate trolley loading module 2, the silo lifting module 3, the plate loading and unloading conveying module 4, the plate loading and grabbing module 5, the plate unloading and grabbing module 6, the plate positioning and edge pressing module 7, the robot gluing module 8 and the conveyor belt transmission module 9 are controlled. The control system simultaneously receives monitoring data from various sensors, misplaced cameras, etc., and takes corresponding actions based on the monitoring data. This control process can be realized through existing technologies and will not be repeated here.

[0083] See also Fig. 9 As shown in the figure, it is a schematic diagram of the appearance of this application. Because the robot is running at a high speed, there are certain safety hazards, so the overall design of the device is a top shell 1101 and a safety door 1102. The operator can observe the operation of the device through a transparent acrylic observation window 1103. The operation of the device is completed through a touch screen 1104. The electrical cabinet safety protection door 1105 is used to protect the electrical cabinet. Fig. 9 As shown, an automatic glue supply module 12 is arranged beside the base 1 of the present application, which further includes a glue supply pump body and a safety protection part, wherein the glue supply pump body is installed inside the protective cover 1201, and the operator can observe the operation of the glue supply pump body through the observation window 1202. If the glue barrel material is used up, the glue barrel can be replaced through the glue barrel replacement door 1203. The glue supply pump body is connected to the robot glue coating module 8, and is used to quickly supply glue to the robot glue coating film.

[0084] The present invention has higher production efficiency and positioning and gluing accuracy due to automated operation. Since no human intervention is required and the equipment is equipped with a safety protection door, the equipment operation safety is also higher. The feeding and positioning devices can be automatically adjusted, the equipment has stronger adaptability to the plates, and the changeover is faster and more convenient.

[0085] 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. Automatic glue coating machine for fuel cell bipolar plates, characterized in that: include: Base; A plate trolley loading module, which is movably connected to one side of the base and is used to provide the plates to be coated with glue, and the plate trolley loading module includes a workpiece tray, on which the plates to be coated with glue are stacked; A silo lifting module is fixed on the base and is close to the plate trolley loading module. The silo lifting module extends into the plate trolley loading module to lift the workpiece tray upward to a material taking height; A plate loading and unloading conveying module is fixed on the base, and a plate loading and unloading conveying module and a plate unloading grasping module are connected to the plate loading and unloading conveying module. The plate loading and unloading conveying module drives the plate loading and grasping module to move above the workpiece tray to grasp the plate to be coated with glue and conveys the plate loading and grasping module to above a plate positioning and pressing module; the plate loading and unloading conveying module drives the plate unloading grasping module to move above the plate positioning and pressing module to grasp the plate that has been coated with glue and moves the plate unloading grasping module to a conveyor belt transmission module; The plate positioning and edge pressing module is fixed on the base and is located within the moving range of the plate loading and grabbing module and the plate unloading and grabbing module. The plate positioning and edge pressing module is used to fix the plate to facilitate accurate gluing; A robot gluing module, which is fixed on the base, and applies glue to the plate fixed on the plate positioning and edge pressing module; The conveyor belt transmission module is fixed on the base, and receives the electrode plates that have been glued and placed by the electrode plate unloading and grabbing module and transports the electrode plates to the next station; The plate trolley loading module comprises: Bottom bracket; Four guide columns, which are fixed on the bottom bracket; The workpiece pallet is fixed to the guide column via a linear axis and moves up and down along the guide column under the action of the silo lifting module; the workpiece pallet is provided with horizontal and vertical guide grooves; An upper plate, which is fixed to the upper ends of the four guide pillars; a notch is provided on the upper plate to facilitate the lifting of the silo lifting module; A first positioning rod, which passes through each of the vertical guide grooves one by one and the bottom is connected to a first adjuster, and the movement of the first positioning rod in the vertical guide groove is adjusted by the movement of the first adjuster. The top of the first positioning rod is connected to a material error tray, and the material error tray is fixed to the upper plate by screws; A second positioning rod, which passes through each of the transverse guide grooves one by one and the bottom is connected to a second adjuster, and the movement of the second positioning rod in the transverse guide groove is adjusted by the movement of the second adjuster. The top of the second positioning rod is connected to a positioning fixture, and the positioning fixture is connected to the upper plate; A third positioning rod, which is fixed on the bottom bracket, and an upper end portion thereof is fixed to two ends of the notch of the upper plate; The space between the first positioning rod, the second positioning rod and the third positioning rod is the positioning space for the electrode plate to be coated with glue; It further includes a control system, which controls the operation of the plate trolley loading module, the silo lifting module plate, the loading and unloading conveying module, the plate loading and grabbing module, the plate unloading and grabbing module, the plate positioning and pressing module and the conveyor belt transmission module.

2. The automatic glue coating machine for fuel cell bipolar plates according to claim 1, characterized in that: The upper surface of the bottom bracket is provided with a plurality of lateral guide wheels along the edge; a positioning sleeve and a buffer pad are provided at an edge connected to the base; two columns are provided on the bottom bracket, and handles are provided on the columns.

3. The automatic glue coating machine for fuel cell bipolar plates according to claim 1, characterized in that: The silo lifting module comprises: The reference plate has two ends of its lower surface provided with a bracket respectively, and is fixed to the base through the bracket; A linear slide rail is provided on the lower surface of the reference plate and is hung on one side of the base and fixed to the base through a fixing bracket, wherein the linear slide rail corresponds to the notch of the upper plate of the plate trolley feeding module; a ball screw is provided in the linear slide rail, and the ball screw is connected to a servo motor through a coupling; The pallet lifting table is fixed on the ball screw through a screw nut seat and moves up and down along the linear slide rail as driven by the servo motor; the pallet lifting table extends into the bottom of the workpiece pallet.

4. The automatic glue coating machine for fuel cell bipolar plates according to claim 1, characterized in that: The plate loading and unloading conveying module comprises: The external bracket has a fixed column at the bottom, a transverse through groove is provided on the front surface of the external bracket, and slide rails are arranged along both sides of the through groove, and a plate loading and unloading grabbing drive and a plate unloading grabbing drive are provided in the external bracket; The plate material grabbing drive comprises: A ball screw fixed in the external bracket; A servo motor connected to one end of the ball screw; A screw nut seat, which is connected to the ball screw, and the connecting end of the screw nut seat passes through the through slot and is connected to the plate material grabbing module, and the servo motor drives the plate material grabbing module to move along the slide rail; The plate unloading and grabbing drive comprises: A feeding drive cylinder, which is fixed in the external bracket; A cylinder connecting piece is connected to the material unloading driving cylinder. The cylinder connecting piece passes through the through slot and is connected to the plate unloading grabbing module. The cylinder connecting piece moves along the slide rail driven by the material unloading driving cylinder.

5. The automatic glue coating machine for fuel cell bipolar plates according to claim 1, characterized in that: The plate positioning and edge pressing module comprises: A positioning platform, which is fixed on a bottom mounting table through a column, and the positioning platform is provided with two groups of horizontal positioning grooves and two groups of vertical positioning grooves; Two sets of long side positioning structures, respectively including: A long side pressing block, which is located on the upper surface of the positioning platform, and the lower surface of the long side pressing block is connected to two long side positioning blocks, and the long side positioning blocks pass through the vertical positioning groove; A long side pressing cylinder is connected to the long side positioning block via a long side pressing cylinder seat, and the long side pressing cylinder drives the long side pressing block to move up and down; Two sets of short side positioning structures, respectively including: A short side pressing block, which is located on the upper surface of the positioning platform, and the lower surface of the short side pressing block is connected to two short side positioning blocks, and the short side positioning blocks pass through the transverse positioning groove; A short side pressing cylinder is connected to the short side positioning block via a short side pressing cylinder seat, and the short side pressing cylinder drives the short side pressing block to move up and down; The long side positioning module and the short side positioning module are respectively arranged on the bottom mounting table; the two groups of long side positioning structures are respectively fixed to the two ends of the long side positioning module through the long side pressing cylinder seats, and the long side positioning structures are driven to move forward and backward by the long side positioning module; the two groups of short side positioning structures are respectively fixed to the two ends of the short side positioning module through the short side pressing cylinder seats, and the short side positioning structures are driven to move left and right by the short side positioning module.

6. The automatic glue coating machine for fuel cell bipolar plates according to claim 1, characterized in that: The plate loading and grabbing module has the same structure as the plate unloading and grabbing module, both of which include: A plate grabbing substrate, one end of which is connected to a slide rail connecting plate, and the other end of which is connected to a material taking cylinder on its upper surface; A rotating cylinder is connected to the bottom of the material taking cylinder, and a suction cup assembly is connected to the bottom of the rotating cylinder; Monitoring components, which include A camera assembly, comprising a misplaced camera and a position adjustment mechanism; the position adjustment mechanism comprises two end brackets fixed on the electrode plate grabbing substrate through a mounting bracket, a sliding rod is provided between the two end brackets, an adjustment block is connected to the sliding rod, and the misplaced camera is connected to the adjustment block through a mounting seat; A first sensor, which is disposed on the mounting seat and is used to detect the position height of the electrode stack on the electrode positioning and edge pressing module; The second sensor is arranged on the suction cup assembly and is used to detect whether the electrode plate is always on the suction cup assembly after the suction cup assembly takes the material.

7. The automatic glue coating machine for fuel cell bipolar plates according to claim 6, characterized in that: The suction cup assembly comprises a suction cup mounting plate and a sponge suction cup fixed on the suction cup mounting plate.

8. The automatic glue coating machine for fuel cell bipolar plates according to claim 6, characterized in that: An anti-collision mechanism is installed on the pole plate grabbing substrate, and the anti-collision mechanism includes an anti-collision mounting block fixed on the pole plate grabbing substrate and an anti-collision block fixed at the front end of the anti-collision mounting block.

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