A bipolar plate automatic welding device with anti-damage function

Abstract

The invention discloses an automatic bipolar plate welding device with an anti-damage function, which belongs to the technical field of welding processing. The invention comprises a conveying beam body, a limited support rod is arranged on the inner wall of the conveying beam body, and a linkage adjustment mechanism is arranged side by side on the outer wall of the conveying beam body, and the linkage adjustment mechanism comprises an inner side frame, which can not only utilize the linkage adjustment mechanism to drive the anti-sputtering sleeve to actively follow the laser welding mechanism to run synchronously, so as to realize real-time shielding protection of the spot welding area of ​​the bipolar plate, but also can regulate the operation of the anti-sputtering sleeve according to the data collected during the use of the welding device, so as to realize the active interference flow of cold air from outside to inside in a spiral suction type in the area where high temperature remains after the spot welding of the bipolar plate, which is helpful for high-speed flow cooling of external air, while the internal obstruction reduces the interference of air flow, and the external flowing air is utilized to suppress the high-temperature heat retained inside, thereby improving the processing efficiency of the overall welding device.

Description

Technical Field

[0001] The invention relates to the technical field of welding processing, in particular to an automatic bipolar plate welding device with an anti-damage function. Background Art

[0002] Bipolar plates play an important role in separating fuel and oxidant and conducting current in fuel cells and other equipment. Welding can ensure the tight connection between bipolar plates, prevent gas or liquid leakage, and ensure the normal operation of fuel cells. It can also enhance the overall structural strength of bipolar plates so that they can withstand mechanical stress such as pressure and vibration during the operation of fuel cells. Properly welded bipolar plates can improve the reliability and durability of fuel cell systems, reduce the possibility of failures, and extend the service life of equipment.

[0003] In combination with the above, it should be noted that during the laser automatic welding process, the traditional bipolar plate is affected by the installation position of the bipolar plate or the adaptability of the welding process, and there is a phenomenon of debris splashing, which leads to material loss and uneven welding surface, and the pores reduce the strength and sealing of the weld; at the same time, the high heat generated during the laser welding process will cause the material around the welding area to be thermally affected, forming a "heat-affected zone". In the heat-affected zone, the microstructure and properties of the material are prone to change, such as grain growth, hardness change, etc. If the heat-affected zone is too large or the performance change is too significant, it may affect the overall performance and service life of the component;

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The object of the present invention is to provide a bipolar plate automatic welding device with an anti-damage function to solve the technical defects proposed by the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic bipolar plate welding device with an anti-damage function, comprising a conveying beam body, a limited support rod is arranged on the inner side wall of the conveying beam body, a linkage adjustment mechanism is arranged side by side on the outer side wall of the conveying beam body, and the linkage adjustment mechanism comprises an inner side frame, a laser welding mechanism is arranged side by side on the outer side wall of the inner side frame, and an upper beam frame is arranged on the inner top of the inner side frame, a sputtering-proof sleeve is slidably arranged on the surface of the upper beam frame, a bottom bracket is arranged at the bottom of the conveying beam body, and a control panel and an exhaust fan are arranged on the side outer wall of the bottom bracket;

[0007] The laser welding mechanism includes an outer frame and a guide rod, a servo motor is arranged on the outer wall of the guide rod, and a laser welding head is arranged at the bottom of the servo motor, a scraper rod is arranged on the inner wall of the bottom of the anti-sputtering sleeve, a plurality of groups of arc-shaped sheets are arranged on the outer ring of the bottom of the anti-sputtering sleeve, and a micromotor is arranged on the bottom of the outer wall of the anti-sputtering sleeve.

[0008] Furthermore, a limiting frame is arranged on the periphery of the limiting support rod, and a plurality of locking grooves are arranged through the surface of the limiting support rod, an inner guide groove is opened on the inner wall of the conveying beam, and a driving block connected with the limiting frame is arranged on the inner wall of the inner guide groove.

[0009] Furthermore, a driving cylinder is provided on the inner side of the top of the inner side frame, and a sliding block connected to the upper beam frame is provided on the top of the driving cylinder, a side guide groove is provided through the outer side of the top of the inner side frame from top to bottom, a penetrating connecting rod is provided on the outer wall of the sliding block, and a lower beam frame is provided at the bottom of the connecting rod, a lower driving motor is provided on the top of the lower beam frame, and a suction cup is provided on the top of the lower driving motor, and an upper driving motor connected to a splash-proof sleeve is provided on the outer wall of the upper beam frame.

[0010] Furthermore, a plurality of groups of air filter elements are embedded on the top of the bottom bracket, a slag collecting pan is arranged between the inner side walls of the bottom bracket, and an air suction ring is arranged on the inner wall of the slag collecting pan.

[0011] Furthermore, an upper guide groove is recessed on the top of the outer frame, a lifting cylinder column connected to the guide rod is arranged on the top of the upper guide groove, a pushing cylinder connected to the lifting cylinder column is arranged inside the upper guide groove, a limiting block is arranged on the inner side of the bottom of the lifting cylinder column, a secondary side frame is arranged side by side on the side of the outer frame, and a secondary frame connected to the guide rod is slidably arranged on the top of the secondary side frame, and a telescopic cylinder connected to the laser welding head is arranged on the outer wall of the servo motor.

[0012] Furthermore, an exhaust ring groove is arranged at the top of the outer periphery of the anti-sputtering sleeve, an outer valve component close to the side of the micromotor is arranged at the outer periphery of the anti-sputtering sleeve, a slip ring is arranged at the top of the arc-shaped sheet, an airway is arranged in the central depression of the top of the slip ring, and ball bearing sets for connecting the bottom of the anti-sputtering sleeve are arranged inside and outside the airway respectively.

[0013] Furthermore, a heat dissipation ring is arranged on the inner wall of the bottom of the anti-sputtering sleeve, and heat dissipation fins embedded in the anti-sputtering sleeve are arranged on the outer periphery of the heat dissipation ring, a rotary cylinder connected to the scraper rod is arranged on the top of the heat dissipation ring, and an inner ring frame connected to the scraper rod and the external valve member is arranged at the bottom of the heat dissipation ring.

[0014] Furthermore, the control panel is internally provided with a processor, a data acquisition module, a data analysis module and a signal execution module;

[0015] The data acquisition module is used to collect the residual heat fluctuation value Rz of the welding point located below the anti-sputtering sleeve and the plate surface state value Tz located on the limit support rod during the use of the welding device, and send the residual heat fluctuation value Rz and the plate surface state value Tz to the data analysis module via the processor;

[0016] After receiving the residual heat fluctuation value Rz and the plate surface state value Tz, the data analysis module immediately analyzes the weld risk of the welding device. The specific analysis process is as follows: the residual heat fluctuation value Rz and the plate surface state value Tz of the welding device within the time threshold are obtained, and the weld risk coefficient FXi is obtained by the formula, and the preset weld risk coefficient YXi stored and entered is retrieved from the processor for comparison and analysis with the weld risk coefficient FXi; if the weld risk coefficient FXi ≥ the preset weld risk coefficient YXi, it is determined that there is an abnormal risk in the use of the welding device within the time threshold, and a cooling signal is generated. The generated signal is sent to the signal execution module via the processor. After receiving the cooling signal, the signal execution module immediately controls the exhaust fan to work; if the weld risk coefficient FXi < the preset weld risk coefficient YXi, no signal is generated.

[0017] The beneficial effects of the present invention are:

[0018] 1. The present invention collects data of the welding device during use, and comprehensively supervises and analyzes the use process of the welding device before and during welding, that is, compares and analyzes the collected data with the preset stored data, obtains relevant rating signals, and controls relevant components to perform compensatory operations accordingly. Therefore, the linkage adjustment mechanism can be used to drive the anti-sputtering sleeve to actively follow the laser welding mechanism to operate synchronously, so as to achieve real-time shielding protection of the bipolar plate spot welding area, and the anti-sputtering sleeve operation can be regulated according to the data collected during the use of the welding device, so as to achieve the active interference flow of cold air from outside to inside in the spiral suction type in the area where high temperature remains after the bipolar plate spot welding, which is conducive to high-speed flow cooling of external air, and the internal obstruction reduces the interference of air flow, and the external flowing air is used to suppress the high-temperature heat retained inside, thereby improving the processing efficiency of the overall welding device;

[0019] 2. The present invention provides an adjustable shielding protection for the periphery of the laser welding head and the bipolar plate welding spot area through the anti-sputtering sleeve. The heat dissipation ring sheet and the inner ring frame operate in conjunction to intercept the splashing debris generated by abnormal bipolar plate processing, and actively clean it with the cooperation of the scraper and the outer valve member. The arc-shaped sheet and the slip ring are used in conjunction with the air duct to form a spirally sucked air negative pressure environment at the bottom of the periphery of the anti-sputtering sleeve to simulate the typhoon cloud wall area, realize the rapid flow of cold air in a local area, and then promote the rapid diffusion of the residual high temperature at the top of the periphery of the bipolar plate welding spot. The distance between the bottom of the anti-sputtering sleeve and the bipolar plate, as well as the direction of the slip ring hole, reduce the flow of air inside the anti-sputtering sleeve to simulate the typhoon eye area. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings;

[0021] Figure 1It is a three-dimensional diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the conveying beam body of the present invention;

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the linkage adjustment mechanism of the present invention;

[0024] Figure 4 It is a partial structural schematic diagram of the linkage adjustment mechanism of the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the anti-sputtering sleeve of the present invention;

[0026] Figure 6 It is a partial cross-sectional structural schematic diagram of the anti-sputtering sleeve of the present invention;

[0027] Figure 7 It is a partial cross-sectional comparison diagram of the slip ring and the anti-sputtering sleeve of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the laser welding mechanism of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the bottom bracket of the present invention;

[0030] Fig.10 It is a flow chart of the system of the present invention.

[0031] Figure numerals: 1. conveying beam; 101. inner guide groove; 102. driving block; 103. limit frame; 104. limit support rod; 105. lock groove; 2. laser welding mechanism; 201. outer frame; 202. upper guide groove; 203. limit block; 204. lifting cylinder column; 205. guide rod; 206. servo motor; 207. telescopic cylinder; 208. laser welding head; 209. sub-frame; 210. sub-side frame; 3. linkage adjustment mechanism; 301. inner frame; 302. driving cylinder; 303. side guide groove; 304. slider; 305. upper beam Frame; 306, lower beam frame; 307, suction cup; 308, connecting rod; 309, lower drive motor; 310, upper drive motor 4, bottom bracket; 401, slag collecting plate; 402, air filter element; 403, suction ring; 404, exhaust fan; 5, control panel; 6, anti-splash sleeve; 601, exhaust ring groove; 602, outer valve member; 603, rotary cylinder; 604, scraper rod; 605, arc sheet; 606, inner ring frame; 607, slip ring; 608, heat dissipation ring sheet; 609, heat dissipation fin; 610, air duct; 611, ball bearing; 612, micro motor. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figure 1 - Figure 5 As shown, this embodiment is an automatic bipolar plate welding device with an anti-damage function, including a conveying beam body 1, a limited support rod 104 is arranged on the inner side wall of the conveying beam body 1, and a linkage adjustment mechanism 3 is arranged side by side on the outer side wall of the conveying beam body 1, and the linkage adjustment mechanism 3 includes an inner side frame 301, and a laser welding mechanism 2 is arranged side by side on the outer side wall of the inner side frame 301, and an upper beam frame 305 is arranged on the inner top of the inner side frame 301, and an anti-sputtering sleeve 6 is slidably arranged on the surface of the upper beam frame 305, and a bottom bracket 4 is arranged at the bottom of the conveying beam body 1, and a control panel 5 and an exhaust fan 404 are arranged on the side outer wall of the bottom bracket 4;

[0034] The laser welding mechanism 2 includes an outer frame 201 and a guide rod 205, a servo motor 206 is arranged on the outer wall of the guide rod 205, and a laser welding head 208 is arranged at the bottom of the servo motor 206, a scraper rod 604 is arranged on the inner wall of the bottom of the anti-sputtering sleeve 6, a plurality of groups of arc-shaped sheets 605 are arranged on the outer ring of the bottom of the anti-sputtering sleeve 6, and a micro motor 612 is arranged on the bottom of the outer wall of the anti-sputtering sleeve 6;

[0035] The control panel 5 is internally provided with a processor, a data acquisition module, a data analysis module and a signal execution module; the data acquisition module is used to collect the residual heat fluctuation value Rz of the welding point located below the anti-sputtering sleeve 6 and the plate surface state value Tz located on the limit support rod 104 during the use of the welding device, and send the residual heat fluctuation value Rz and the plate surface state value Tz to the data analysis module via the processor; 30s during the use of the welding device is set as the time threshold;

[0036] It should be noted that: the residual heat fluctuation value Rz is expressed as the average value of the maximum and minimum values ​​of the residual temperature change in the weld area of ​​the bipolar plate after laser welding within the time threshold, and the value of the residual heat fluctuation value Rz reflects the damage effect of the residual high temperature on the plate in the weld area of ​​the bipolar plate in this state, and the larger the value of the residual heat fluctuation value Rz, the higher the value of the residual heat fluctuation value Rz, which indicates that there is a high temperature residual abnormality in the weld within the time threshold, and it is easy to cause thermal damage to the weld of the double plywood. The plate surface state value Tz is expressed as the change comparison parameter of the surface of the bipolar plate weld area obtained within the time threshold. In addition, the residual heat fluctuation value Rz is collected by a temperature sensor installed in the outer bottom area of ​​the anti-sputtering sleeve 6, and the plate surface state value Tz is collected by an industrial camera installed on the limit support rod 104 and the upper beam frame 305;

[0037] After receiving the residual heat fluctuation value Rz and the plate surface state value Tz, the data analysis module immediately analyzes the welding point risk of the welding device. The specific analysis process is as follows:

[0038] Obtain the residual heat fluctuation value Rz of the welding device within the time threshold and the surface state value Tz of the plate, and use the formula The solder joint risk coefficient FXi is obtained, wherein a and b are respectively the proportional coefficients of the residual heat fluctuation value Rz and the plate surface state value Tz, a>b>0, FXi is expressed as the solder joint risk coefficient, and the preset solder joint risk coefficient YXi stored in the processor is retrieved for comparison and analysis with the solder joint risk coefficient FXi;

[0039] If the soldering point risk coefficient FXi ≥ the preset soldering point risk coefficient YXi, it is determined that there is an abnormal risk in the use of the welding device within the time threshold, and a cooling signal is generated. The generated signal is sent to the signal execution module via the processor. After receiving the cooling signal, the signal execution module immediately controls the exhaust fan 404 to work;

[0040] The exhaust fan 404 is connected to the air passage 610 inside the anti-sputtering sleeve 6 through the regulating valve and the pipeline, and extracts air in the peripheral area of ​​the bottom of the anti-sputtering sleeve 6 along the slip ring 607 through the air passage 610, forming a negative pressure environment flowing from the outside to the inside at the bottom of the anti-sputtering sleeve 6, so as to promote the passive flow of cold air around;

[0041] At the same time, the micromotor 612 drives the slip ring 607 to rotate along the bottom of the anti-sputtering sleeve 6 through the transmission member. The slip ring 607 is movably connected to the bottom of the anti-sputtering sleeve 6 through multiple sets of balls 611. The slip ring 607 drives the arc-shaped pieces 605 to perform circular rotation along the bottom of the anti-sputtering sleeve 6, thereby actively changing the flow trajectory of the passively extracted air at the bottom of the outer periphery of the anti-sputtering sleeve 6, causing the passively extracted cold air to form a spiral air ring trajectory at the outer periphery of the anti-sputtering sleeve 6. Due to the installation of the arc-shaped pieces 605 and the outward holes at the bottom of the slip ring 607, only the cold air of the outer periphery of the anti-sputtering sleeve 6 is extracted, and the distance between the bottom of the anti-sputtering sleeve 6 and the bipolar plate is limited, which limits the air flow inside the anti-sputtering sleeve 6, reducing the influence of the air flow on the laser welding;

[0042] When the external cold air is continuously drawn into the air passage 610, the heat dissipation ring sheet 608 transfers the heat accumulated inside the anti-sputtering sleeve 6 to the air passage 610 through the heat dissipation fins 609. Under the influence of the cold air flowing in the air passage 610, the heat conducted on the heat dissipation fins 609 is quickly aerodynamically flushed and transferred;

[0043] If the solder joint risk factor FXi is less than the preset solder joint risk factor YXi, no signal is generated.

[0044] Embodiment 2: This embodiment is an automatic bipolar plate welding device with an anti-damage function, including a limit frame 103 arranged on the outer periphery of a limit support rod 104, and a plurality of lock grooves 105 are arranged on the surface of the limit support rod 104, an inner guide groove 101 is opened on the inner side wall of the conveying beam body 1, and a driving block 102 connected to the limit frame 103 is arranged on the inner side wall of the inner guide groove 101, and the position of the limit support rod 104 in the limit frame 103 is adjusted according to the model of the bipolar plate to be welded, and the bipolar plate is fixed to the limit support rod 104 along the lock groove 105 by using an external fastener;

[0045] The driving block 102 drives the limit frame 103 to move and transport along the inner guide groove 101 to a designated position near the top of the bottom bracket, and the laser welding mechanism 2 drives the laser welding head 208 to perform laser welding processing on the bipolar plate according to the preset program, and the linkage adjustment mechanism 3 drives the anti-sputtering sleeve 6 to move synchronously with the laser welding head 208 to achieve a covering protection for the outside of the welding point, effectively avoiding problems such as debris splashing caused by process errors such as bipolar plate materials or the operating procedures of the welding device during laser welding;

[0046] A driving cylinder 302 is provided on the inner side of the top of the inner side frame 301, and a slider 304 connected to the upper beam 305 is provided on the top of the driving cylinder 302. A side guide groove 303 is provided from top to bottom on the outer side of the top of the inner side frame 301. A penetrating connecting rod 308 is provided on the outer wall of the slider 304, and a lower beam 306 is provided at the bottom of the connecting rod 308. A lower driving motor 309 is provided on the top of the lower beam 306, and a suction cup 307 is provided on the top of the lower driving motor 309. An upper driving motor 310 connected to the anti-sputtering sleeve 6 is provided on the outer wall of the upper beam 305.

[0047] The linkage adjustment mechanism 3 drives the slider 304 to move axially along the top of the side guide groove 303 through the driving cylinder 302. A lifting cylinder connected to the upper beam 305 is arranged on the inner wall of the slider 304. The lifting cylinder adjusts the upper beam 305 according to the distance between the top of the bipolar plate and the bottom of the anti-sputtering sleeve 6. The upper driving motor drives the anti-sputtering sleeve 6 to move axially along the surface of the upper beam 305, and the slider 304 drives the upper beam 305 to move axially along the inner side frame 301, so that the bottom of the anti-sputtering sleeve 6 is always sleeved on the outer periphery of the laser welding head 208 and above the welding point of the bipolar plate to be processed;

[0048] A plurality of air filter elements 402 are embedded on the top of the bottom bracket 4, a slag collecting pan 401 is arranged between the inner side walls of the bottom bracket 4, an air suction ring 403 is arranged on the inner wall of the slag collecting pan 401, the slider 304 drives the lower beam 306 to move synchronously along the bottom of the inner side frame 301 through the connecting rod 308, the lower driving motor 309 drives the suction cup 307 to move synchronously along the top of the lower beam 306 and the position of the anti-sputtering sleeve 6, the suction cup 307 is connected to the exhaust fan 404 through a pipeline and a regulating valve, and a negative pressure environment is formed at the bottom of the bipolar plate spot welding area through the suction cup 307, which is used to extract the residual high temperature generated by the laser welding of the bipolar plate;

[0049] Part of the debris dropped by the bipolar plate during laser welding is collected by the slag collecting tray 401 located directly below the bipolar plate. The exhaust fan 404 is connected to the air intake ring 403 through the regulating valve and pipeline. The air intake ring 403 forms a negative pressure environment in the inner wall area around the slag collecting tray 401. Combined with the closed structure at the bottom of the slag collecting tray 401 body, the air in the top area of ​​the slag collecting tray 401 flows from top to bottom, which helps to quickly diffuse the high-temperature waste heat generated by the welding on the surface of the bipolar plate;

[0050] An upper guide groove 202 is recessed on the top of the outer frame 201, a lifting cylinder column 204 connected to a guide rod 205 is arranged on the top of the upper guide groove 202, a push cylinder connected to the lifting cylinder column 204 is arranged inside the upper guide groove 202, a limit block 203 is arranged on the inner side of the bottom of the lifting cylinder column 204, a secondary frame 210 is arranged side by side on the side of the outer frame 201, and a secondary frame 209 connected to the guide rod 205 is slidably arranged on the top of the secondary frame 210, and a telescopic cylinder 207 connected to a laser welding head 208 is arranged on the outer wall of the servo motor 206;

[0051] The lifting cylinder column 204 moves along the inner part of the upper guide groove 202 by pushing the cylinder, and the lifting cylinder column 204 drives the guide rod 205 to move vertically up and down along the middle of the sub-frame 209. The lifting cylinder column 204 drives the sub-frame 209 to move synchronously along the top of the sub-side frame 210 through the guide rod 205. The servo motor 206 drives the telescopic cylinder 207 to move axially along the rod body of the guide rod 205. The laser welding head 208 performs laser welding processing on the pre-marked welding points on the bipolar plate during the movement;

[0052] An exhaust ring groove 601 is provided at the top of the outer periphery of the anti-sputtering sleeve 6, an outer valve member 602 close to the side of the micro-motor 612 is provided at the outer periphery of the anti-sputtering sleeve 6, a slip ring 607 is provided at the top of the arc-shaped sheet 605, an airway 610 is provided in the center depression at the top of the slip ring 607, and a set of balls 611 for connecting the bottom of the anti-sputtering sleeve 6 are provided inside and outside the airway 610, respectively. When the anti-sputtering sleeve 6 moves synchronously with the laser welding head 208, the inner ring frame 606 is affected by the position relationship of the anti-sputtering sleeve 6, and it is kept within a controllable and non-contacting range with the top of the bipolar plate;

[0053] When the surface of the bipolar plate is splashed with debris generated by laser welding, the hand-sputtering sleeve 6 is used for annular protection to intercept the splashing debris, and some of the splashing debris falls into the groove on the top of the inner ring frame 606. The rotary cylinder 603 is started at a fixed time, and the rotary cylinder 603 drives the scraper rod 604 to rotate in a circle along the inside of the anti-sputtering sleeve 6, and scrapes the debris adhering to the heat dissipation ring sheet 608, and pushes it to the outer valve member 602 area. The outer valve member 602 is connected to the exhaust fan 404 and the slag collecting pan 401 through a pipe fitting, and the debris on the inner bracket close to the outer valve member 602 is pneumatically negatively extracted and piped into the slag collecting pan 401;

[0054] A heat dissipation ring sheet 608 is arranged on the inner wall at the bottom of the anti-sputtering sleeve 6, and a heat dissipation fin 609 embedded in the anti-sputtering sleeve 6 is arranged on the outer periphery of the heat dissipation ring sheet 608, a rotary cylinder 603 connected to the scraper rod 604 is arranged on the top of the heat dissipation ring sheet 608, and an inner ring frame 606 connected to the scraper rod 604 and the outer valve member 602 is arranged at the bottom of the heat dissipation ring sheet 608.

[0055] Combining the first and second embodiments, it can be known that the linkage adjustment mechanism 3 can be used to drive the anti-sputtering sleeve 6 to actively follow the laser welding mechanism 2 to run synchronously, so as to realize real-time shielding protection of the bipolar plate spot welding area, and the anti-sputtering sleeve 6 can be regulated according to the data collected during the use of the welding device to realize the active interference flow of cold air from the outside to the inside in a spiral suction type in the area where high temperature remains after the bipolar plate spot welding, which helps the high-speed flow of external air to cool down, while the internal obstruction reduces the interference of air flow, and the external flowing air is used to suppress the high-temperature heat retained inside, thereby improving the processing efficiency of the overall welding device.

[0056] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A bipolar plate automatic welding device with an anti-damage function, comprising a conveying beam body (1), wherein a limiting support rod (104) is arranged on the inner side wall of the conveying beam body (1), characterized in that: The outer wall of the conveying beam body (1) is provided with linkage adjustment mechanisms (3) in parallel, and the linkage adjustment mechanisms (3) include inner side frames (301), the outer wall of the inner side frames (301) is provided with laser welding mechanisms (2) in parallel, and the inner top of the inner side frames (301) is provided with an upper beam frame (305), and the surface of the upper beam frame (305) is provided with a splash-proof sleeve (6) in a sliding manner, and the bottom of the conveying beam body (1) is provided with a bottom bracket (4), and the outer wall of the side of the bottom bracket (4) is provided with a control panel (5) and an exhaust fan (404); The laser welding mechanism (2) comprises an outer frame (201) and a guide rod (205); a servo motor (206) is arranged on the outer wall of the guide rod (205); a laser welding head (208) is arranged at the bottom of the servo motor (206); a scraper rod (604) is arranged on the inner wall of the bottom of the anti-sputtering sleeve (6); a plurality of groups of arc-shaped sheets (605) are arranged on the outer ring of the bottom of the anti-sputtering sleeve (6); and a micro motor (612) is arranged at the bottom of the outer wall of the anti-sputtering sleeve (6); A driving cylinder (302) is arranged on the inner side of the top of the inner side frame (301), and a slider (304) connected to the upper beam frame (305) is arranged on the top of the driving cylinder (302); a side guide groove (303) is arranged on the outer side of the top of the inner side frame (301) from top to bottom; a connecting rod (308) is arranged on the outer wall of the slider (304), and a lower beam frame (306) is arranged at the bottom of the connecting rod (308); a lower driving motor (309) is arranged on the top of the lower beam frame (306), and a suction cup (307) is arranged on the top of the lower driving motor (309); and an upper driving motor (310) connected to the anti-sputtering sleeve (6) is arranged on the outer wall of the upper beam frame (305); A plurality of groups of air filter elements (402) are embedded on the top of the bottom bracket (4), a slag collecting pan (401) is provided between the inner side walls of the bottom bracket (4), and an air suction ring (403) is provided on the inner wall of the slag collecting pan (401).

2. The automatic bipolar plate welding device with anti-damage function according to claim 1, characterized in that: A limiting frame (103) is arranged on the periphery of the limiting support rod (104), and a plurality of locking grooves (105) are arranged through the surface of the limiting support rod (104). An inner guide groove (101) is provided on the inner side wall of the conveying beam body (1), and a driving block (102) connected to the limiting frame (103) is arranged on the inner side wall of the inner guide groove (101).

3. The automatic bipolar plate welding device with anti-damage function according to claim 1, characterized in that: An upper guide groove (202) is recessed at the top of the outer side frame (201), a lifting cylinder column (204) connected to a guide rod (205) is arranged at the top of the upper guide groove (202), a limit block (203) is arranged on the inner side of the bottom of the lifting cylinder column (204), a secondary side frame (210) is arranged side by side on the side of the outer side frame (201), and a secondary frame (209) connected to the guide rod (205) is slidably arranged at the top of the secondary side frame (210), and a telescopic cylinder (207) connected to a laser welding head (208) is arranged on the outer wall of the servo motor (206).

4. The automatic bipolar plate welding device with anti-damage function according to claim 1, characterized in that: An exhaust ring groove (601) is arranged at the top of the outer periphery of the anti-sputtering sleeve (6), an outer valve member (602) close to the side of the micromotor (612) is arranged at the outer periphery of the anti-sputtering sleeve (6), a slip ring (607) is arranged at the top of the arc-shaped sheet (605), an air channel (610) is arranged in a concave center at the top of the slip ring (607), and a ball (611) set for connecting to the bottom of the anti-sputtering sleeve (6) is arranged inside and outside the air channel (610).

5. The automatic bipolar plate welding device with anti-damage function according to claim 4, characterized in that: A heat dissipation ring sheet (608) is arranged on the inner wall of the bottom of the anti-sputtering sleeve (6), and heat dissipation fins (609) embedded in the anti-sputtering sleeve (6) are arranged on the outer periphery of the heat dissipation ring sheet (608). A rotary cylinder (603) connected to the scraper rod (604) is arranged on the top of the heat dissipation ring sheet (608), and an inner ring frame (606) connected to the scraper rod (604) and the outer valve member (602) is arranged at the bottom of the heat dissipation ring sheet (608).

6. The automatic bipolar plate welding device with anti-damage function according to claim 1, characterized in that: The control panel (5) is internally provided with a processor, a data acquisition module, a data analysis module and a signal execution module; The data acquisition module is used to collect the residual heat fluctuation value Rz of the welding point located below the anti-sputtering sleeve (6) and the plate surface state value Tz located on the limit support rod (104) during use of the welding device, and send the residual heat fluctuation value Rz and the plate surface state value Tz to the data analysis module via the processor; After receiving the residual heat fluctuation value Rz and the plate surface state value Tz, the data analysis module immediately analyzes the weld risk of the welding device. The specific analysis process is as follows: the residual heat fluctuation value Rz and the plate surface state value Tz of the welding device within the time threshold are obtained, the weld risk coefficient FXi is obtained by the formula, and the preset weld risk coefficient YXi stored and recorded is retrieved from the processor for comparison and analysis with the weld risk coefficient FXi; if the weld risk coefficient FXi ≥ the preset weld risk coefficient YXi, it is determined that there is an abnormal risk in the use of the welding device within the time threshold, and a cooling signal is generated. The generated signal is sent to the signal execution module via the processor. After receiving the cooling signal, the signal execution module immediately controls the exhaust fan (404) to work; If the solder joint risk factor FXi is less than the preset solder joint risk factor YXi, no signal is generated.

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