CN111805118A - Automatic positioning welding device for bipolar plate of fuel cell - Google Patents
Automatic positioning welding device for bipolar plate of fuel cell Download PDFInfo
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- CN111805118A CN111805118A CN202010919480.7A CN202010919480A CN111805118A CN 111805118 A CN111805118 A CN 111805118A CN 202010919480 A CN202010919480 A CN 202010919480A CN 111805118 A CN111805118 A CN 111805118A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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Abstract
The invention discloses an automatic positioning welding device for a bipolar plate of a fuel cell, and relates to the technical field of fuel cell processing equipment. Including welded platform, the welding arm, first polar plate material loading platform, second polar plate material loading platform, first feed mechanism, second feed mechanism, moving mechanism and linkage adjustment mechanism, first feed mechanism is the same with second feed mechanism structure and all includes horizontal material loading subassembly and adsorption component, all be equipped with on first polar plate material loading platform and the second polar plate material loading platform and push away material subassembly and locating component, linkage adjustment mechanism includes the linkage subassembly, transmission assembly and restriction subassembly, the linkage subassembly sets up between the material pushing subassembly and the moving mechanism on first polar plate material loading platform. The invention can improve the transportation stability of the polar plate, prevent the polar plate from falling off in the transportation process, automatically adjust according to the size change of the polar plate, keep the alignment accuracy of the polar plate and has simple operation.
Description
Technical Field
The invention relates to the technical field of fuel cell processing equipment, in particular to an automatic positioning welding device for a bipolar plate of a fuel cell.
Background
A fuel cell is a chemical device that directly converts chemical energy of fuel into electrical energy, and is also called an electrochemical generator. It is a fourth power generation technology following hydroelectric power generation, thermal power generation and atomic power generation. The fuel cell converts the Gibbs free energy in the chemical energy of the fuel into electric energy through electrochemical reaction, is not limited by Carnot cycle effect, and has high efficiency; meanwhile, no mechanical transmission part is arranged, so that no noise pollution is caused, and the discharged harmful gas is less. Therefore, from the viewpoint of energy saving and ecological environment protection, the fuel cell is the most promising power generation technology, wherein the bipolar plate is one of the most important structures in the fuel cell, and the internal resistance detection of the bipolar plate for improving the working efficiency and safety of the fuel cell will be an indispensable process.
The prior art patent publication No. CN109802153B provides a process and forming apparatus for making a metal bipolar plate for a fuel cell, comprising the steps of: s1: manufacturing a mold, S2: processing the blank, S3: machining the unipolar plate, S4: processing configuration, S5: and (6) processing and forming. The invention also discloses a forming device for manufacturing the fuel cell metal bipolar plate, which adopts the stamping process and the auxiliary laser cutting and laser welding technology to simultaneously stamp and form two unipolar plates with different structures, and then the unipolar plates are welded into a set of usable fuel cell bipolar plates.
In the actual operation process, two bipolar plates need to be stacked in the welding process and then welded, and the bipolar plate stacking step in the prior art is realized by sequentially putting the two bipolar plates together by using a feeding mechanism. This still has following weak point, firstly, prior art adopts the centre gripping to remove or the sucking disc adsorbs the removal to the material loading of polar plate, and the centre gripping removes easily because the unable accurate control of clamping-force causes the injury easily to the polar plate, and the sucking disc adsorbs the back and generally can drive the polar plate and rotate when removing the polar plate, and rotation in-process polar plate and sucking disc atress are inhomogeneous, for example we can the perk one side of sucking disc when pulling out the sucking disc, are convenient for pull out the sucking disc like this, therefore the atress of polar plate and sucking disc is inhomogeneous leads to the sucking disc to drop easily. Secondly, after the size of the polar plate is changed, the size of the existing equipment needs to be input on the equipment again, and the working position of the equipment is adjusted, so that the complexity of the equipment is increased, the overall cost of the equipment is increased, the operation difficulty of the equipment is increased, the knowledge requirement of workers is increased, and the production cost is also increased.
Disclosure of Invention
The invention aims to provide an automatic positioning welding device for a bipolar plate of a fuel cell, which aims to solve the technical problems that the automation degree of the bipolar plate in the welding process is low and the requirement of the welding process of the bipolar plate on the position precision of two unipolar plates is extremely high in the prior art.
An automatic positioning welding device for a fuel cell bipolar plate comprises a welding platform, a welding mechanical arm, a first polar plate feeding platform, a second polar plate feeding platform, a first feeding mechanism, a second feeding mechanism, a moving mechanism and a linkage adjusting mechanism, wherein the first polar plate feeding platform and the second polar plate feeding platform are respectively arranged on two sides of the welding platform, the first polar plate feeding platform and the welding platform are integrally arranged, the moving mechanism is arranged at the joint of the first polar plate feeding platform and the welding platform, the first feeding mechanism is arranged at the upper end of the moving mechanism, the second feeding mechanism is arranged on one side, close to the second polar plate feeding platform, of the welding platform, the first feeding mechanism and the second feeding mechanism are identical in structure and respectively comprise a horizontal feeding assembly and an adsorption assembly, and pushing assemblies and positioning assemblies are respectively arranged on the first polar plate feeding platform and the second polar plate feeding platform, the two pushing assemblies and the two positioning assemblies are symmetrically arranged, the linkage adjusting mechanism comprises a linkage assembly, a transmission assembly and a limiting assembly, the linkage assembly is arranged between the pushing assembly and the moving mechanism on the first polar plate feeding platform, and the transmission assembly and the limiting assembly are arranged in the middle of the linkage assembly.
Furthermore, the moving mechanism comprises two moving assemblies symmetrically arranged on two sides of the first polar plate feeding platform, each moving assembly comprises a moving groove, a moving guide rod and a moving block, the moving grooves are formed in the first polar plate feeding platform, the moving guide rods are arranged in the moving grooves, two ends of each moving guide rod are fixedly connected with the first polar plate feeding platform, and the moving blocks are sleeved on the moving guide rods and are in sliding fit with the moving guide rods.
Further, the horizontal feeding assembly comprises two support frames, two feeding arms, a feeding shaft and a feeding motor, wherein the two support frames in the first feeding mechanism are respectively arranged on two moving blocks in the moving mechanism, the two support frames in the second feeding mechanism are both arranged on the second polar plate feeding platform, two ends of the feeding shaft are respectively connected with the two support frames in a rotating manner, the output end of the feeding motor is fixedly connected with one end of the feeding shaft, the two feeding arms are symmetrically arranged, the two feeding arms are both fixedly connected with the feeding shaft, a first gear, a second gear and a third gear are arranged in the middle of each feeding arm, the lower end of the first gear in the first feeding mechanism is fixedly connected with the corresponding moving block, the lower end of the first gear in the second feeding mechanism is fixedly connected with the second polar plate feeding platform, and the first gear is coaxially arranged with the feeding shaft, the second gear and the third gear are both rotatably arranged in the feeding arms, the first gear and the third gear are respectively arranged on two sides of the second gear and are both meshed with the second gear, a fixing plate is arranged between the feeding arms, connecting shafts are arranged at two ends of the fixing plate, and the connecting shafts are respectively fixedly connected with the two third gears.
Further, the adsorption component is including driving actuating cylinder, drive plate and a plurality of pneumatic chuck, it runs through the fixed plate to drive actuating cylinder to be vertical setting on the fixed plate and drive the output of actuating cylinder, the drive plate is installed on the output that drives actuating cylinder, all pneumatic chuck all installs on the drive plate, the upper end of drive plate is equipped with two guide bars, be equipped with two on the fixed plate respectively with the guiding hole of two guide bar one-to-one.
Further, the material pushing assembly comprises two material pushing screw sliding tables and a material pushing plate, the two material pushing screw sliding tables are symmetrically arranged, and two ends of the material pushing plate are fixedly connected with two sliding blocks on the material pushing screw sliding tables respectively.
Further, the linkage assembly is arranged inside the first polar plate feeding platform and comprises a linkage block, a pushing block, a fixed block, a moving cylinder, a connecting rod, two first racks and two second racks, a groove body which is respectively in sliding fit with the linkage block, the pushing block, the fixed block, the moving cylinder, the connecting rod and the two first racks is arranged in the second polar plate feeding platform, the linkage block is vertically arranged at the lower end of the pushing plate, the fixed block is horizontally arranged below the linkage block, the pushing block is arranged at the upper end of the fixed block, the pushing block is matched with the linkage block, the moving cylinder is arranged on the fixed block, the middle part of the connecting rod is fixedly connected with the output end of the moving cylinder, the two first racks are respectively fixedly connected with the two ends of the connecting rod, the two second racks are respectively arranged at the lower ends of the two moving blocks, the two second racks correspond to the two first racks one by one and are matched with the transmission assembly, and one end of the fixed block is provided with a return spring.
The two transmission assemblies are respectively arranged between the corresponding first rack and the corresponding second rack, each transmission assembly comprises a first transmission shaft, a second transmission shaft and a third transmission shaft, the first transmission shaft, the second transmission shaft and the third transmission shaft are respectively arranged between the corresponding first rack and the corresponding second rack, the axis of the second transmission shaft is parallel to the length direction of the first rack and the second rack, the axes of the first transmission shaft and the third transmission shaft are perpendicular to the axis of the second transmission shaft, the first transmission shaft is provided with a turbine and a fourth gear meshed with the second rack, the second transmission shaft is provided with a first bevel gear and a worm meshed with the turbine, and the third transmission shaft is provided with a second bevel gear matched with the first bevel gear and a fifth gear matched with the first rack.
Furthermore, the limiting assembly comprises a limiting shaft, a limiting rack, a limiting block, a limiting spring and a limiting disc, the limiting shaft is arranged above the fixing block, the limiting block is arranged at the lower end of the middle of the limiting shaft, the limiting rack is arranged at the upper end of the fixing block, the limiting rack is matched with the limiting block, one end of the limiting spring is fixedly connected with the limiting block, and the other end of the limiting spring is fixedly connected with the inner wall of the first pole plate feeding platform.
Furthermore, locating component includes two location cylinders and two locating plates, two location cylinder symmetry sets up and two locating plates are installed respectively on the output of two location cylinders, every one side of locating plate all is equipped with two positioning guide arms, all be equipped with on the first polar plate material loading platform and the second polar plate material loading platform with positioning guide arm sliding fit's locating hole.
Compared with the prior art, the invention has the beneficial effects that:
firstly, when the feeding arm rotates, the first gear is not fixedly connected with the feeding arm, so the first gear cannot rotate, at the moment, the second gear rotates around the first gear, the second gear can rotate due to the meshing with the first gear while moving, and then the third gear meshed with the second gear is driven to rotate, the feeding arm is enabled to be in a state parallel to the welding platform all the time under the rotating condition through the transmission proportion arrangement of the first gear, the second gear and the third gear, so that the gravity borne by the polar plate adsorbed under the adsorption component is always opposite to the adsorption force of the adsorption component, the polar plate is also enabled to be in a horizontal state all the time in the transportation process, and the situation that the edge is separated from the adsorption component due to uneven gravity of the polar plate to further cause the whole falling of the polar plate can be prevented, on the one hand, the stability of transportation can be improved, and on the other hand, the accurate alignment of the two polar plates is guaranteed.
Secondly, the influence caused by the size change of the polar plates can be compensated through the work of the linkage adjusting mechanism matched with the material pushing assembly and the moving mechanism, so that the polar plates fed by the first feeding mechanism and the second feeding mechanism can still be overlapped, computer control is not needed in the process, data do not need to be reset manually, on one hand, the size change of the polar plates is automatically limited through the change of a mechanical structure during feeding, and further appropriate adjustment is generated, manual operation is not needed, on the one hand, the cost of equipment is reduced, on the other hand, the operation difficulty of the equipment is reduced, the cultural requirement on workers is reduced, and the production cost can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of a first feeding mechanism according to the present invention;
FIG. 3 is a partial perspective view of the present invention;
FIG. 4 is a schematic perspective view of the linkage adjustment mechanism of the present invention;
FIG. 5 is an enlarged view taken at A in FIG. 4;
FIG. 6 is a diagram showing the state before and after adjustment when the plate size changes during operation of the present invention.
Reference numerals: the welding machine comprises a welding platform 1, a welding mechanical arm 2, a first pole plate feeding platform 3, a second pole plate feeding platform 4, a first feeding mechanism 5, a horizontal feeding assembly 51, a support frame 511, a feeding arm 512, a feeding shaft 513, a feeding motor 514, a first gear 515, a second gear 516, a third gear 517, a fixing plate 518, an adsorption assembly 52, a driving cylinder 521, a driving plate 522, a pneumatic sucker 523, a guide rod 524, a second feeding mechanism 6, a moving mechanism 7, a moving groove 71, a moving guide rod 72, a moving block 73, a linkage adjusting mechanism 8, a linkage assembly 81, a linkage block 811, a push block 812, a fixing block 813, a moving cylinder 814, a connecting rod 815, a first rack 816, a second rack 817, a return spring 818, a transmission assembly 82, a first transmission shaft 821, a second transmission shaft 822, a third transmission shaft 823, a worm wheel 824, a fourth gear 825, a first bevel gear 826, 827, a second bevel gear 828, the device comprises a fifth gear 829, a limiting assembly 83, a limiting shaft 831, a limiting rack 832, a limiting block 833, a limiting spring 834, a limiting disc 835, a pushing assembly 9, a pushing screw sliding table 91, a pushing plate 92, a positioning assembly 10, a positioning cylinder 101, a positioning plate 102 and a positioning guide rod 103.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to fig. 1 to 6, and it is obvious that the described embodiments are some, not all embodiments of the present invention.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
According to the drawings of fig. 1 to 6, an automatic positioning welding device for a fuel cell bipolar plate comprises a welding platform 1, a welding mechanical arm 2, a first polar plate feeding platform 3, a second polar plate feeding platform 4, a first feeding mechanism 5, a second feeding mechanism 6, a moving mechanism 7 and a linkage adjusting mechanism 8, wherein the first polar plate feeding platform 3 and the second polar plate feeding platform 4 are respectively arranged on two sides of the welding platform 1, the first polar plate feeding platform 3 and the welding platform 1 are integrally arranged, the moving mechanism 7 is arranged at the joint of the first polar plate feeding platform 3 and the welding platform 1, the first feeding mechanism 5 is arranged at the upper end of the moving mechanism 7, the second feeding mechanism 6 is arranged on one side of the welding platform 1 close to the second polar plate feeding platform 4, the first feeding mechanism 5 and the second feeding mechanism 6 are identical in structure and both comprise a horizontal feeding assembly 51 and an adsorption assembly 52, the first pole plate feeding platform 3 and the second pole plate feeding platform 4 are both provided with a material pushing assembly 9 and a positioning assembly 10, the two material pushing assemblies 9 and the two positioning assemblies 10 are symmetrically arranged, the linkage adjusting mechanism 8 comprises a linkage assembly 81, a transmission assembly 82 and a limiting assembly 83, the linkage assembly 81 is arranged between the material pushing assembly 9 and the moving mechanism 7 on the first pole plate feeding platform 3, and the transmission assembly 82 and the limiting assembly 83 are both arranged in the middle of the linkage assembly 81; in the working process of the invention, two polar plates are fed through the first polar plate feeding platform 3 and the second polar plate feeding platform 4, the feeding speed of the polar plates can be improved, when the polar plates are fed, the polar plates are placed on the first polar plate feeding platform 3 or the second polar plate feeding platform 4, then the polar plates are pushed to the positioning assembly 10 through the corresponding material pushing assembly 9, the polar plates are positioned through the positioning assembly 10, then the polar plates on the second polar plate feeding platform 4 are moved to the lower end of the welding mechanical arm 2 by the second feeding mechanism 6, the polar plates on the first polar plate feeding platform 3 are moved to the welding mechanical arm 2 by the first feeding mechanism 5, when the size of the polar plates changes, because the rotating amplitude of the first feeding mechanism 5 and the second feeding mechanism 6 is not changed, the two polar plates cannot be superposed, at this time, the linkage assembly 81 and the transmission assembly 82 are matched with the material pushing assembly 9 to work, the position of the first feeding mechanism 5 is adjusted in time, so that the two polar plates are overlapped together, the whole adjusting process does not need manual control, the equipment cost is reduced, the horizontal requirement on workers is also reduced, and the production cost is reduced.
Specifically, the moving mechanism 7 comprises two moving assemblies symmetrically arranged on two sides of the first pole plate feeding platform 3, each moving assembly comprises a moving groove 71, a moving guide rod 72 and a moving block 73, the moving groove 71 is arranged on the first pole plate feeding platform 3, the moving guide rods 72 are arranged in the moving grooves 71, two ends of each moving guide rod 72 are fixedly connected with the first pole plate feeding platform 3, and the moving blocks 73 are sleeved on the moving guide rods 72 and are in sliding fit with the moving guide rods 72; the first feeding mechanism 5 installed on the moving mechanism 7 can be driven to move by moving the moving block 73 along the moving guide rod 72 in the moving groove 71, so that the effect of overlapping can be achieved after the size of the pole plate loaded by the first feeding mechanism 5 and the pole plate loaded by the second feeding mechanism 6 is changed in time, and subsequent welding processing is facilitated.
Specifically, the horizontal feeding assembly 51 includes two support frames 511, two feeding arms 512, a feeding shaft 513 and a feeding motor 514, the two support frames 511 in the first feeding mechanism 5 are respectively disposed on the two moving blocks 73 in the moving mechanism 7, the two support frames 511 in the second feeding mechanism 6 are both disposed on the second plate feeding platform 4, two ends of the feeding shaft 513 are respectively rotatably connected with the two support frames 511, an output end of the feeding motor 514 is fixedly connected with one end of the feeding shaft 513, the two feeding arms 512 are symmetrically disposed, the two feeding arms 512 are both fixedly connected with the feeding shaft 513, a first gear 515, a second gear 516 and a third gear 517 are disposed in the middle of each feeding arm 512, a lower end of the first gear 515 in the first feeding mechanism 5 is fixedly connected with the corresponding moving block 73, a lower end of the first gear 515 in the second feeding mechanism 6 is fixedly connected with the second plate feeding platform 4, the first gear 515 and the feeding shaft 513 are coaxially arranged, the second gear 516 and the third gear 517 are both rotatably arranged in the feeding arms 512, the first gear 515 and the third gear 517 are respectively arranged at two sides of the second gear 516 and both are engaged with the second gear 516, a fixing plate 518 is arranged between the two feeding arms 512, connecting shafts are respectively arranged at two ends of the fixing plate 518, and the two connecting shafts are respectively and fixedly connected with the two third gears 517, wherein the two ends of the feeding shaft 513 can be respectively provided with the feeding motor 514 for driving, or two feeding motors 514 can be simultaneously arranged for driving the same feeding shaft 513, the specific working principle is that the feeding shaft 513 is driven to rotate by the operation of the feeding motor 514, the feeding arm 512 rotates, and polar plates adsorbed by the adsorption component 52 are transported from one end to the other end when rotating, when the feeding arm 512 rotates, because the first gear 515 is not fixedly connected with the feeding arm 512, the first gear 515 cannot rotate, at this time, the second gear 516 rotates around the first gear 515, and the second gear 516 can rotate due to the engagement with the first gear 515 while moving, and then drives the third gear 517 engaged therewith to rotate, and through the transmission ratio setting of the first gear 515, the second gear 516 and the third gear 517, the fixing plate 518 is always in a state parallel to the welding platform 1 under the condition that the feeding arm 512 rotates, so that the gravity borne by the polar plate adsorbed under the adsorption component 52 is always opposite to the adsorption force of the adsorption component 52, and the polar plate is also always kept in a horizontal state in the transportation process, and the situation that the polar plate is separated from the adsorption component 52 due to uneven gravity and then the whole polar plate falls off can be prevented, on the one hand, the stability of transportation can be improved, and on the other hand, the accurate alignment of the two polar plates is guaranteed.
Specifically, the adsorption assembly 52 comprises a driving cylinder 521, a driving plate 522 and a plurality of pneumatic suction cups 523, wherein the driving cylinder 521 is vertically arranged on a fixing plate 518, an output end of the driving cylinder 521 penetrates through the fixing plate 518, the driving plate 522 is arranged on an output end of the driving cylinder 521, all the pneumatic suction cups 523 are arranged on the driving plate 522, two guide rods 524 are arranged at the upper end of the driving plate 522, and two guide holes which are respectively in one-to-one correspondence with the two guide rods 524 are arranged on the fixing plate 518; the driving plate 522 is pushed to move downwards by driving the air cylinder 521, so that the polar plate is adsorbed by the pneumatic sucker 523 at the lower end of the driving plate 522, and the polar plate can be driven to be transported.
Specifically, the pushing assembly 9 includes two pushing screw sliding tables 91 and a pushing plate 92, the two pushing screw sliding tables 91 are symmetrically arranged, and two ends of the pushing plate 92 are respectively fixedly connected with the sliding blocks on the two pushing screw sliding tables 91; can drive scraping wings 92 through pushing away material lead screw slip table 91 work and remove, with polar plate propelling movement to locating component 10 department, also be convenient for first feed mechanism 5 and second feed mechanism 6 adsorption of polar plate simultaneously.
Specifically, the linkage assembly 81 is installed inside the first pole plate feeding platform 3 and includes a linkage block 811, a pushing block 812, a fixed block 813, a moving cylinder 814, a connecting rod 815, two first racks 816 and two second racks 817, a groove body slidably fitted with the linkage block 811, the pushing block 812, the fixed block 813, the moving cylinder 814, the connecting rod 815 and the two first racks 816 is arranged in the second pole plate feeding platform 4, the linkage block 811 is vertically arranged at the lower end of the pushing plate 92, the fixed block 813 is horizontally arranged below the linkage block 811, the pushing block 812 is installed at the upper end of the fixed block 813, the pushing block 812 is fitted with the linkage block 811, the moving cylinder 814 is installed on the fixed block, the middle part of the connecting rod 815 is fixedly connected with the output end of the moving cylinder 814, the two first racks 816 are fixedly connected with the two ends of the connecting rod 815 respectively, the two second racks 817 are respectively installed at the lower ends of the two moving blocks 73, the two second racks 817 are in one-to-one correspondence with the two first racks 816 and are matched with each other through the transmission assembly 82, and one end of the fixed block 813 is provided with a return spring 818.
Specifically, two transmission assemblies 82 are provided, two transmission assemblies 82 are respectively disposed between a corresponding first rack 816 and a corresponding second rack 817, each transmission assembly 82 includes a first transmission shaft 821, a second transmission shaft 822 and a third transmission shaft 823, the first transmission shaft 821, the second transmission shaft 822 and the third transmission shaft 823 are disposed between a corresponding first rack 816 and a corresponding second rack 817, an axis of the second transmission shaft 822 is parallel to a length direction of the first rack 816 and the second rack 817, axes of the first transmission shaft 821 and the third transmission shaft 823 are perpendicular to an axis of the second transmission shaft 822, a worm gear 824 and a fourth gear 825 engaged with the second rack 817 are disposed on the first transmission shaft 821, a first bevel gear 826 and a worm 827 engaged with the worm gear 824 are disposed on the second transmission shaft 822, a second bevel gear 828 engaged with the first bevel gear 826 and a fifth gear 829 engaged with the first rack 816 are disposed on the third transmission shaft 823, the purpose of the transmission fit of the worm 827 of the worm wheel 824 is to set the tooth slots of the worm 827 of the worm wheel 824, so that when the worm 827 rotates, the worm wheel 824 cannot drive the worm 827 to rotate, and meanwhile, the rotation trend of the worm wheel 824 can cause friction between the worm 827 and the worm along the axis of the worm 827 instead, so as to prevent the worm 827 from rotating, therefore, after the linkage assembly 81 stops working, the worm 827 of the worm wheel 824 can play a role in self-locking, and the situation that the inertia during working causes excessive adjustment can be avoided.
Specifically, the limiting assembly 83 includes a limiting shaft 831, a limiting rack 832, a limiting block 833, a limiting spring 834 and a limiting disc 835, the limiting shaft 831 is disposed above the fixing block 813, the limiting block 833 is disposed at the lower end of the middle of the limiting shaft 831, the limiting rack 832 is disposed at the upper end of the fixing block 813, the limiting rack 832 is matched with the limiting block 833, one end of the limiting spring 834 is fixedly connected with the limiting block 833, and the other end of the limiting spring 834 is fixedly connected with the inner wall of the first plate feeding platform 3; when the polar plate is machined by changing the size from small size to small size, only the limiting disc 835 needs to be rotated, the limiting shaft 831 drives the limiting block 833 to rotate, the limiting block 833 is separated from the limiting rack 832, the linkage assembly 81 is reset under the action of the spring, the polar plate can be positioned again according to the size of the polar plate, repeated work is achieved, and operation is simple.
The three sections of the feeding specific steps of the known polar plate are combined, when the polar plate is the maximum size processed by the present invention, in operation, when the material pushing plate 92 moves to push the polar plate to move, the linkage block 811 is driven to move together until the linkage block 811 is attached to one side of the fixed block 813, the fixed block 813 cannot be moved, and after the polar plate is adsorbed by the first feeding mechanism 5, the moving cylinder 814 operates to push the two first racks 816 to move through the connecting rod 815, so that the first racks 816 just move to the position to be meshed with the fifth gear 829, at this time, the moving mechanism 7 is not affected, i.e., the position of the first feeding mechanism 5 is not affected, when the size of the processed polar plate is reduced, the moving distance of the material pushing plate 92 is increased a little, the specifically increased length is the length of the reduced polar plate, if the length is a, the moving distance of the linkage block 811 driven by the material pushing plate 92 is increased by a, the linkage block 811 is caused to finally push the fixed block 813 to move a, then the moving cylinder 814, the connecting rod 815 and the first rack 816 are also caused to integrally move a forward, then the limiting block 833 is matched with the limiting rack 832 to limit the position of the fixed block 813, after the first feeding mechanism 5 adsorbs the pole plates, the moving cylinder 814 is operated to push the two first racks 816 to move through the connecting rod 815, due to the previous integral forward movement a, the first rack 816 pushes the fifth gear 829 to rotate, and further through the transmission of the two bevel gears, the worm wheel 824, the worm 827 and the fourth gear 825 and the second rack 817, the moving block 73 is also caused to move a, so that the position of the first feeding mechanism 5 according to fig. 4 is also caused to move a rightward to compensate the change of the size of the pole plates, and further the pole plates fed by the first feeding mechanism 5 and the second feeding mechanism 6 can still coincide, this process need not computer control, need not artifical reset data, and the size change of the automatic pole plate that passes through mechanical structure when the material loading on the one hand is injectd, and then produces suitable adjustment, need not manual operation, has reduced the cost of equipment on the one hand, and on the other hand has reduced the operation degree of difficulty of equipment, reduces the cultural requirement to the workman, can reduction in production cost.
Specifically, the positioning assembly 10 includes two positioning cylinders 101 and two positioning plates 102, the two positioning cylinders 101 are symmetrically arranged, the two positioning plates 102 are respectively installed at output ends of the two positioning cylinders 101, one side of each positioning plate 102 is provided with two positioning guide rods 103, and the first pole plate feeding platform 3 and the second pole plate feeding platform 4 are provided with positioning holes in sliding fit with the positioning guide rods 103; the positioning cylinder 101 works to push the two positioning plates 102 to clamp the polar plates, so that the positioning effect is achieved, and the subsequent alignment and overlapping between the two polar plates are facilitated.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides an automatic fixed-position welding set of fuel cell bipolar plate which characterized in that: the welding device comprises a welding platform (1), a welding mechanical arm (2), a first polar plate feeding platform (3), a second polar plate feeding platform (4), a first feeding mechanism (5), a second feeding mechanism (6), a moving mechanism (7) and a linkage adjusting mechanism (8), wherein the first polar plate feeding platform (3) and the second polar plate feeding platform (4) are respectively arranged on two sides of the welding platform (1), the first polar plate feeding platform (3) and the welding platform (1) are integrally arranged, the moving mechanism (7) is arranged at the joint of the first polar plate feeding platform (3) and the welding platform (1), the first feeding mechanism (5) is arranged at the upper end of the moving mechanism (7), the second feeding mechanism (6) is arranged on one side, close to the second polar plate feeding platform (4), of the welding platform (1), and the first feeding mechanism (5) and the second feeding mechanism (6) are identical in structure and comprise a horizontal feeding assembly (51) and an adsorption assembly (8) 52) The automatic feeding device comprises a first pole plate feeding platform (3), a second pole plate feeding platform (4), a linkage adjusting mechanism (8) and a linkage component (81), a transmission component (82) and a limiting component (83), wherein the first pole plate feeding platform (3) and the second pole plate feeding platform (4) are both provided with a material pushing component (9) and a positioning component (10), the two material pushing components (9) and the two positioning components (10) are symmetrically arranged, the linkage adjusting mechanism (8) comprises the linkage component (81), the transmission component (82) and the limiting component (83), the linkage component (81) is arranged between the material pushing component (9) and the moving mechanism (7) on the first pole plate feeding platform (3), and the transmission component (82) and the limiting component (.
2. The automatic tack welding apparatus for a fuel cell bipolar plate according to claim 1, wherein: the moving mechanism (7) comprises two moving assemblies symmetrically arranged on two sides of the first polar plate feeding platform (3), each moving assembly comprises a moving groove (71), a moving guide rod (72) and a moving block (73), the moving grooves (71) are arranged on the first polar plate feeding platform (3), the moving guide rods (72) are arranged in the moving grooves (71), two ends of the moving guide rods (72) are fixedly connected with the first polar plate feeding platform (3), and the moving blocks (73) are sleeved on the moving guide rods (72) and are in sliding fit with the moving guide rods (72).
3. The automatic tack welding apparatus for a fuel cell bipolar plate according to claim 2, wherein: the horizontal feeding assembly (51) comprises two support frames (511), two feeding arms (512), a feeding shaft (513) and a feeding motor (514), wherein the two support frames (511) in the first feeding mechanism (5) are respectively arranged on two moving blocks (73) in the moving mechanism (7), the two support frames (511) in the second feeding mechanism (6) are respectively arranged on the second pole plate feeding platform (4), two ends of the feeding shaft (513) are respectively connected with the two support frames (511) in a rotating manner, the output end of the feeding motor (514) is fixedly connected with one end of the feeding shaft (513), the two feeding arms (512) are symmetrically arranged, the two feeding arms (512) are respectively and fixedly connected with the feeding shaft (513), a first gear (515), a second gear (516) and a third gear (517) are arranged in the middle of each feeding arm (512), the lower end of a first gear (515) in the first feeding mechanism (5) is fixedly connected with a corresponding moving block (73), the lower end of a first gear (515) in the second feeding mechanism (6) is fixedly connected with a second pole plate feeding platform (4), the first gear (515) and a feeding shaft (513) are coaxially arranged, the second gear (516) and a third gear (517) are rotatably arranged in a feeding arm (512), the first gear (515) and the third gear (517) are respectively arranged on two sides of the second gear (516) and are respectively meshed with the second gear (516), a fixing plate (518) is arranged between the two feeding arms (512), connecting shafts are respectively arranged at two ends of the fixing plate (518), and the two connecting shafts are respectively and fixedly connected with the two third gears (517).
4. The automatic tack welding apparatus for a fuel cell bipolar plate according to claim 3, wherein: adsorption component (52) are including driving actuating cylinder (521), drive plate (522) and a plurality of pneumatic suction cup (523), it runs through fixed plate (518) to drive actuating cylinder (521) and be vertical setting on fixed plate (518) and drive the output of actuating cylinder (521), install on the output that drives actuating cylinder (521) drive plate (522), all pneumatic suction cup (523) are all installed on drive plate (522), the upper end of drive plate (522) is equipped with two guide bars (524), be equipped with two on fixed plate (518) respectively with the guiding hole of two guide bars (524) one-to-one.
5. The automatic tack welding apparatus for a fuel cell bipolar plate according to claim 2, wherein: push away material subassembly (9) and include that two push away material lead screw slip table (91) and scraping wings (92), two push away material lead screw slip table (91) and are the symmetry setting, the both ends of scraping wings (92) push away the slider fixed connection on material lead screw slip table (91) with two respectively.
6. The automatic tack welding apparatus for a fuel cell bipolar plate according to claim 5, wherein: the linkage assembly (81) is arranged in the first pole plate feeding platform (3) and comprises a linkage block (811), a pushing block (812), a fixed block (813), a moving cylinder (814), a connecting rod (815), two first racks (816) and two second racks (817), a groove body which is respectively in sliding fit with the linkage block (811), the pushing block (812), the fixed block (813), the moving cylinder (814), the connecting rod (815) and the two first racks (816) is arranged in the second pole plate feeding platform (4), the linkage block (811) is vertically arranged at the lower end of the pushing plate (92), the fixed block (813) is horizontally arranged below the linkage block (811), the pushing block (812) is arranged at the upper end of the fixed block (813) and the pushing block (812) is matched with the linkage block (811), the moving cylinder (814) is arranged on the fixed block (813), the middle of the connecting rod (815) is fixedly connected with the output end of the movable cylinder (814), the two first racks (816) are respectively fixedly connected with the two ends of the connecting rod (815), the two second racks (817) are respectively installed at the lower ends of the two movable blocks (73), the two second racks (817) correspond to the two first racks (816) one by one and are matched with each other through the transmission assembly (82), and one end of the fixed block (813) is provided with a return spring (818).
7. The automatic tack welding apparatus for a fuel cell bipolar plate according to claim 6, wherein: the two transmission assemblies (82) are respectively arranged between the corresponding first rack (816) and the corresponding second rack (817), each transmission assembly (82) comprises a first transmission shaft (821), a second transmission shaft (822) and a third transmission shaft (823), the first transmission shaft (821), the second transmission shaft (822) and the third transmission shaft (823) are respectively arranged between the corresponding first rack (816) and the corresponding second rack (817), the axis of the second transmission shaft (822) is parallel to the length direction of the first rack (816) and the length direction of the second rack (817), the axis of the first transmission shaft (821) and the axis of the third transmission shaft (823) are perpendicular to the axis of the second transmission shaft (822), the first transmission shaft (821) is provided with a turbine (824) and a fourth gear (825) meshed with the second rack (817), and the second transmission shaft (822) is provided with a first bevel gear (826) and a worm meshed with the turbine (824) (827) And a second bevel gear (828) matched with the first bevel gear (826) and a fifth gear (829) matched with the first rack (816) are arranged on the third transmission shaft (823).
8. The automatic tack welding apparatus for a fuel cell bipolar plate according to claim 6, wherein: restriction subassembly (83) are including restricting axle (831), restriction rack (832), restriction piece (833), restriction spring (834) and restriction dish (835), restriction axle (831) set up in the top of fixed block (813) and restrict piece (833) and set up the lower extreme at restriction axle (831) middle part, restriction rack (832) set up the upper end of fixed block (813) and restrict rack (832) and restrict piece (833) and cooperate, the one end and the restriction piece (833) fixed connection of restriction spring (834), the other end and the inner wall fixed connection of first polar plate material loading platform (3) of restriction spring (834).
9. The automatic tack welding apparatus for a fuel cell bipolar plate according to claim 1, wherein: the positioning assembly (10) comprises two positioning cylinders (101) and two positioning plates (102), wherein the two positioning cylinders (101) are symmetrically arranged, the two positioning plates (102) are respectively installed at the output ends of the two positioning cylinders (101), each positioning rod (103) is arranged on one side of each positioning plate (102), and positioning holes which are in sliding fit with the positioning rods (103) are formed in the first polar plate feeding platform (3) and the second polar plate feeding platform (4).
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| CN202010919480.7A CN111805118B (en) | 2020-09-04 | 2020-09-04 | Automatic positioning welding device for bipolar plate of fuel cell |
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| CN202010919480.7A CN111805118B (en) | 2020-09-04 | 2020-09-04 | Automatic positioning welding device for bipolar plate of fuel cell |
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| CN113601525A (en) * | 2021-08-06 | 2021-11-05 | 上海工程技术大学 | Annular track wheel type walking robot for welding sacrificial anode block of wind power tower |
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| CN115647683A (en) * | 2022-12-14 | 2023-01-31 | 适新科技（苏州）有限公司 | High efficiency fuel cell bipolar plate welding apparatus for producing |
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