CN214264269U - Rolling type resistance welding device for metal bipolar plate - Google Patents
Rolling type resistance welding device for metal bipolar plate Download PDFInfo
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- CN214264269U CN214264269U CN202022680985.0U CN202022680985U CN214264269U CN 214264269 U CN214264269 U CN 214264269U CN 202022680985 U CN202022680985 U CN 202022680985U CN 214264269 U CN214264269 U CN 214264269U
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Abstract
The utility model discloses a metal bipolar plate roll formula resistance welding device, including last fastener and lower fastener, insert welding path board in going up the fastener, insert welding path board down in the fastener down, go up welding path board upper surface and be equipped with the gyro wheel, lower welding path board lower surface is equipped with down the gyro wheel, goes up the welding path board and all forms the welding path lines of longitudinal symmetry distribution with the upper and lower surface of welding path board down, welding path lines is protruding form and distributes, goes up the welding path lines uniformity correspondence distribution of welding path board and lower welding path board department. The metal cathode and anode plates are fixed between the upper welding path and the lower welding path through the fastening device, and the time required for trimming the resistance welding joint can be effectively reduced by utilizing the characteristic that the welding paths can be quickly replaced.
Description
Technical Field
The utility model belongs to the technical field of welding frock clamp's technique and specifically relates to a metal bipolar plate roll formula resistance welding device, in particular to its mechanical connection structure.
Background
At present, the connection mode of the metal polar plates of the fuel cell mainly relates to methods such as laser welding and bonding, but the laser welding often adopts high-speed laser welding for improving efficiency, but the high welding speed in the welding process causes poor gas protection performance, and the heat input of the upper and lower polar plates is inconsistent due to the welding seam formed by the laser heating of the single side of the polar plates, which causes the defects of large deformation of the welded polar plates and the like. Secondly, under the condition of ensuring the connection performance of the pole plates, the equipment can use larger pressure to connect during welding due to the selection of a resistance welding mode, so that the problem that the quality of a welded component is influenced due to the clamping of a clamp in laser welding can not occur in the connection method.
Disclosure of Invention
An object of the utility model is to provide a metal bipolar plate roll formula resistance welding device, fastener assembly welding route and play insulating effect make the electric current reduce unnecessary loss through gyro wheel direct action on welding route, the gyro wheel passes through line contact and welding route contact, forms resistance heat and melts formation welding seam and reach the interatomic combination with bipolar plate contact segment between the sheet metal in the twinkling of an eye of contact, and this technical scheme has overcome the shortcoming and the not enough that exist among the prior art.
In order to realize the purpose, the technical scheme of the utility model is that: the metal bipolar plate rolling type resistance welding device comprises an upper fastening device and a lower fastening device, wherein an upper welding path plate is inserted into the upper fastening device, a lower welding path plate is inserted into the lower fastening device, an upper roller is arranged on the upper surface of the upper welding path plate, a lower roller is arranged on the lower surface of the lower welding path plate, welding path lines which are distributed in an up-and-down symmetrical mode are formed on the upper surface and the lower surface of the upper welding path plate and the lower welding path plate respectively, the welding path lines are distributed in a protruding mode, and the welding path lines at the positions of the upper welding path plate and the lower welding path plate are distributed correspondingly in a consistent mode.
Furthermore, both ends of the upper roller and the lower roller are connected with resistance welding equipment.
Furthermore, the upper fastening device and the lower fastening device are of rectangular frame structures, an opening is formed in one side frame, assembling grooves are formed in the inner walls of the two sides of the frame, the assembling grooves of the upper fastening device are used for assembling the upper welding path plate, and the assembling grooves of the lower fastening device are used for assembling the lower welding path plate.
Preferably, the welding path side plate can be replaced at any time, and the method can replace the selected welding path to achieve the best welding effect. In addition, the resistance welding needs to correct a welding head in the welding process, such as resistance spot welding, the spot welding head of the resistance spot welding needs to be subjected to grinding and polishing treatment after being used for a long time, the spot welding head is prevented from being adhered with a welding member to influence the surface quality of the member, and the welding path of the resistance spot welding can be replaced in time to reduce the time required for restitution of the welding head of the resistance welding.
The utility model discloses a metal bipolar plate roll formula resistance welding device has following beneficial effect: the metal cathode and anode plates are fixed between the upper welding path and the lower welding path through the fastening device, the fastening device provides pressure required by resistance welding for the cathode and anode plates, and the problem of energy loss in the welding process can be effectively reduced due to the fact that the fastening device adopts insulating materials, and the time required for trimming a resistance welding joint can be effectively reduced by means of the characteristic that the welding paths can be replaced quickly. In addition, the rollers on the polar plate resistance welding tool provide welding current in a line contact mode on a welding path in the welding process, so that the controllability of the welding quality is guaranteed, and if welding defects occur at a certain position on a polar plate, the defects can be quickly positioned and cause analysis can be carried out.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the schematic diagram of the welding path plate structure of the present invention.
Fig. 3 is a schematic structural view of the fastening device of the present invention.
Fig. 4 is a schematic view of the roller structure of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the drawings and the specific embodiments.
The utility model discloses a metal bipolar plate roll formula resistance welding device, as shown in figure 1, it is different from prior art and lies in: the welding device comprises an upper fastening device 1 and a lower fastening device 2, wherein the upper fastening device 1 and the lower fastening device 2 are controlled by a pneumatic device, an upper welding path plate 3 is inserted into the upper fastening device 1, a lower welding path plate 4 is inserted into the lower fastening device 2, an upper roller 5 is arranged on the upper surface of the upper welding path plate 3, a lower roller 6 is arranged on the lower surface of the lower welding path plate 4, welding path lines 7 which are symmetrically distributed up and down are formed on the upper surface and the lower surface of the upper welding path plate 3 and the lower welding path plate 4, the welding path lines 7 are distributed in a convex shape, and the welding path lines 7 at the upper welding path plate 3 and the lower welding path plate 4 are correspondingly distributed in a consistent manner.
In specific implementation, two ends of the upper roller 5 and the lower roller 6 are both connected with resistance welding equipment, two ends of the upper roller 5 and the lower roller 6 are made of copper materials and have good conductivity, and current is provided for the metal bipolar plate in a line contact mode in the welding process, so that the welding of the fuel cell is performed in a segmented mode, and the consistency of the welding quality of each segment is guaranteed.
In practical application, the upper fastening device 1 and the lower fastening device 2 are rectangular frame structures, one side frame of each of which is provided with an opening 8, and the inner walls of two sides of each frame are provided with assembling grooves 9, wherein the assembling grooves of the upper fastening device 1 are used for assembling the upper welding path plate 3, and the assembling grooves of the lower fastening device 2 are used for assembling the lower welding path plate 4.
During welding, the upper fastening device is fixed, and the lower fastening device is pushed upwards by the air pressure device to achieve a clamping effect. The part of connecting the metal cathode and anode plates with the welding path is clamped, the metal cathode and anode plates are positioned between the upper welding path plate 3 and the lower welding path plate 4, the fastening device is made of an insulating material due to the fact that the fastening device also has the requirement of non-conductivity, energy loss is reduced while fastening, the welding path is made of pure copper, the effect that the welded metal bipolar plate can realize quick cooling is guaranteed, welding deformation of a component caused by local heating of the metal electrode plate in the welding process is reduced, the fastening device can provide clamping force for the component in the welding process, and the component is free to deform due to no clamping in the welding process.
The welding path plate can be replaced at any time, so that the welding is in the state of highest efficiency due to the problems that the resistance welding joint needs to be ground and the like are not considered. The device promotes welding current to transmit current to the cathode plate and the anode plate in a line contact mode through connecting the resistance welding machine, ensures that welding is segmented welding, and can find corresponding reasons for generating defects when the defects of welding seams occur. In addition, the connection of different types of fuel cell metal bipolar plates can be quickly realized through the replacement of the welding path, and the replacement of a welding clamp similar to laser welding is not needed. The time for replacing welding tools in different types of production can be greatly reduced, the working efficiency is improved, and the process flow is improved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The rolling type resistance welding device for the metal bipolar plate is characterized by comprising an upper fastening device (1) and a lower fastening device (2), wherein an upper welding path plate (3) is inserted into the upper fastening device (1), a lower welding path plate (4) is inserted into the lower fastening device (2), an upper roller (5) is arranged on the upper surface of the upper welding path plate (3), a lower roller (6) is arranged on the lower surface of the lower welding path plate (4), welding path lines (7) which are symmetrically distributed up and down are formed on the upper surface and the lower surface of the upper welding path plate (3) and the lower welding path plate (4), the welding path lines (7) are distributed in a convex shape, and the welding path lines (7) at the positions of the upper welding path plate (3) and the lower welding path plate (4) are correspondingly distributed in a consistent manner.
2. The rolling resistance welding apparatus of metal bipolar plates as claimed in claim 1, wherein: the two ends of the upper roller (5) and the lower roller (6) are both connected with resistance welding equipment, and the two ends of the upper roller (5) and the lower roller (6) are made of copper materials.
3. The rolling resistance welding apparatus of metal bipolar plates as claimed in claim 1, wherein: the upper fastening device (1) and the lower fastening device (2) are of rectangular frame structures, an opening (8) is formed in one side frame, assembling grooves (9) are formed in the inner walls of the two sides of the frame, the assembling grooves of the upper fastening device (1) are used for assembling the upper welding path plate (3), and the assembling grooves of the lower fastening device (2) are used for assembling the lower welding path plate (4).
4. The rolling resistance welding apparatus of metal bipolar plates as claimed in claim 1, wherein: the upper fastening device (1) and the lower fastening device (2) are made of insulating materials.
5. The rolling resistance welding apparatus of metal bipolar plates as claimed in claim 1, wherein: the upper welding path plate (3) and the lower welding path plate (4) are made of pure copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022680985.0U CN214264269U (en) | 2020-11-18 | 2020-11-18 | Rolling type resistance welding device for metal bipolar plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022680985.0U CN214264269U (en) | 2020-11-18 | 2020-11-18 | Rolling type resistance welding device for metal bipolar plate |
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| CN214264269U true CN214264269U (en) | 2021-09-24 |
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| CN202022680985.0U Active CN214264269U (en) | 2020-11-18 | 2020-11-18 | Rolling type resistance welding device for metal bipolar plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112570866A (en) * | 2020-11-18 | 2021-03-30 | 上海治臻新能源装备有限公司 | Rolling type resistance welding device for metal bipolar plate and processing method |
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2020
- 2020-11-18 CN CN202022680985.0U patent/CN214264269U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112570866A (en) * | 2020-11-18 | 2021-03-30 | 上海治臻新能源装备有限公司 | Rolling type resistance welding device for metal bipolar plate and processing method |
| CN112570866B (en) * | 2020-11-18 | 2024-03-12 | 上海治臻新能源股份有限公司 | Rolling type resistance welding device and processing method for metal bipolar plate |
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Address after: 201306 factory building 1, No. 1500, cenglin Road, Lingang New District, pilot Free Trade Zone, Pudong New Area, Shanghai Patentee after: Shanghai Zhizhen new energy Co.,Ltd. Address before: 201306 factory building 1, no.1500, cenglin Road, Nicheng Town, Pudong New Area, Shanghai Patentee before: SHANGHAI ZHIZHEN NEW ENERGY EQUIPMENT CO.,LTD. |
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