Airtightness detection equipment for metal bipolar plate

Abstract

The utility model provides metal bipolar plate airtightness detection equipment, comprising a support and a mounting rack, the top of the support is fixedly provided with an airtightness detection assembly, the top of the airtightness detection assembly is fixedly provided with a leak detection tool assembly, the top of the mounting rack is fixedly provided with a moving assembly, the outer side of the support is provided with a transport trolley, and the outer side of the transport trolley is provided with a leak detection tool assembly. And a metal bipolar plate body is arranged at the top of the leak detection tool assembly. According to the airtightness detection equipment for the metal bipolar plate, the moving assembly is arranged and matched with the upper transport trolley, so that the operation steps of workers are effectively reduced, the detection efficiency is improved, the leakage detection tool assembly is arranged, the metal bipolar plate is not prone to shaking during airtightness detection, and therefore the accuracy of detection data is guaranteed, and the detection efficiency is improved. The air tightness detection assembly is arranged, the specific air leakage position of the metal bipolar plate is judged according to the position of bubbles emerging in water, the metal bipolar plate is better replaced and maintained, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field related to bipolar plate detection devices, and in particular to a metal bipolar plate airtightness detection device. Background Art

[0002] Bipolar plates are a crucial component of fuel cells, and their airtightness significantly impacts fuel cell performance. They provide gas flow paths, preventing hydrogen and oxygen from intermingling in the cell's gas chamber and establishing a current path between the series-connected cathode and anode. While maintaining a certain level of mechanical strength and good gas barrier properties, bipolar plates should be as thin as possible to minimize resistance to current and heat conduction. Therefore, a metal bipolar plate airtightness testing device is particularly desirable.

[0003] However, when the existing metal bipolar plate air tightness detection equipment performs air tightness detection operations, staff or organizations are required to remove the bipolar plates from the assembly line and place them in the lower mold for testing. Not only are there many operation steps and great instability, but the equipment also occupies a large space and has low detection efficiency, which affects the production efficiency of the bipolar plates. At the same time, when leakage and other phenomena are detected, it is impossible to promptly discover and investigate which part has leaked, resulting in low detection effect, increased working hours, and greatly reduced work efficiency. Utility Model Content

[0004] The purpose of the present utility model is to provide a metal bipolar plate air tightness detection device to solve the problem that the existing metal bipolar plate air tightness detection equipment proposed in the above background technology requires staff or institutions to remove the bipolar plate from the assembly line and place it in the lower mold for testing during the air tightness detection operation. Not only are there many operating steps and great instability, but the equipment also occupies a large space and has low detection efficiency, which affects the production efficiency of the bipolar plate. At the same time, when leakage and other phenomena are detected, it is impossible to promptly discover and investigate which part has leaked, resulting in low detection effect, increased working time, and greatly reduced work efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a metal bipolar plate airtightness detection device, comprising a bracket and a mounting frame, an airtightness detection component is fixedly installed on the top of the bracket, a leak detection tooling component is fixedly installed on the top of the airtightness detection component, a moving component is fixedly installed on the top of the mounting frame, a transport trolley is provided on the outside of the bracket, a handrail is welded to the top of the transport trolley, a universal wheel is provided on the bottom of the transport trolley, and a metal bipolar plate body is provided on the top of the leak detection tooling component.

[0006] Preferably, the airtightness detection assembly includes a water tank, a fixed block, a limit groove, a movable plate, a roller, an operating box, a display meter, a switch button and a plug. The water tank is fixedly installed on the top of the bracket, and a fixed block is fixedly installed on the top of the water tank by bolts. A limit groove is provided on the outside of the fixed block. A movable plate is provided on the top of the water tank, and a roller is provided on the outside of the movable plate. The operating box is fixedly installed on the top of the water tank, and a display meter is fixedly installed on the top of the water tank. A switch button is fixedly installed on the outside of the display meter, and a plug is provided on the outside of the water tank. The roller is slidably connected to the limit groove, and the plug is detachably installed.

[0007] Preferably, the fixing blocks and the rollers are provided in equal numbers, and the fixing blocks and the rollers are all matched.

[0008] The top of the movable plate is fixed with the bottom plate, the top of the movable plate is fixed with the bottom plate, the top of the movable plate is fixed with the support seat, the top of the movable plate is fixed with the mounting base 1, the top of the mounting base 1 is fixedly installed with the rotating clamping cylinder, the movable end of the rotating clamping cylinder is fixedly installed with the telescopic rod, the end of the telescopic rod away from the rotating clamping cylinder is fixedly installed with the clamp, the bottom of the clamp is fixedly installed with the silicone pad, the top of the bottom plate is fixedly installed with the limiting seat, the top of the bottom plate is fixedly installed with the pull ring, the top of the bottom plate is fixedly installed with the positioning column, the top of the bottom plate is fixedly installed with the limiting column, the top of the bottom plate is fixedly installed with the concave seat, the limiting seat and the concave seat are adapted to the metal bipolar plate body, and the positioning column and the limiting column are in contact with the metal bipolar plate body.

[0009] Preferably, the mounting base 1, rotary clamping cylinder, telescopic rod, chuck and silicone pad are provided in four identical ones, and the four mounting base 1, rotary clamping cylinder, telescopic rod, chuck and silicone pad are diagonally distributed with respect to the vertical center line of the base plate.

[0010] Preferably, the moving assembly includes a motor 1, a transmission screw 1, a screw seat 1, a sliding seat, a slide rail, a slider, a mounting plate, a motor 2, a transmission screw 2, a screw seat 2, a connecting block, a mounting base 2, a telescopic cylinder and a suction cup. The top of the mounting frame is fixedly mounted with a motor 1, the output end of the motor 1 is fixedly mounted with a transmission screw 1, the top of the mounting frame is fixedly mounted with a screw seat 1, the outer side of the transmission screw 1 is threadedly connected to the sliding seat, the top of the mounting frame is fixedly mounted with a slide rail, the top of the slide rail is slidably connected to the slider, and the slide A mounting plate is fixedly installed on the top of the moving seat by bolts, and a second motor is fixedly installed on the top of the mounting plate, and a second transmission screw is fixedly installed on the output end of the second motor, and a second screw seat is fixedly installed on the top of the mounting plate, and a connecting block is threadedly connected to the outer side of the second transmission screw, and a second mounting base is fixedly installed on the bottom of the connecting block, and a telescopic cylinder is fixedly installed on the bottom of the second mounting base, and a suction cup is fixedly installed on the movable end of the telescopic cylinder. The sliding seat has the same height as the slider, and the top of the slider is fixedly installed with a mounting plate by bolts.

[0011] Preferably, a metal bipolar plate body is provided on the top of the transport trolley, and two identical groups of the transport trolleys are provided, and the two groups of the transport trolleys are symmetrically distributed about the vertical center line of the airtightness detection assembly.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the metal bipolar plate airtightness detection equipment, by setting a mobile component and cooperating with a transport trolley, effectively reduces the operating steps of the staff and increases the overall stability; the equipment is of an integrated design, which improves the detection efficiency, speeds up the production efficiency of the metal bipolar plate, reduces the labor intensity of the staff; and a leak detection tooling component is provided to further fix the metal bipolar plate, so that the metal bipolar plate is not easy to shake during the airtightness detection, thereby ensuring the accuracy of the detection data and improving work efficiency; at the same time, an airtightness detection component is provided, and the specific leakage location of the metal bipolar plate can be judged by the position of the bubbles emerging from the water, so as to better replace and repair the metal bipolar plate; the operation is simple and convenient, and the airtightness of the test is easy to observe, which facilitates the staff to accurately and quickly perform airtightness detection on the metal bipolar plate, and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the mobile component of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the airtight detection component of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the leak detection tool assembly of the utility model;

[0017] Figure 5 It is a schematic diagram of the combined structure of the practical leak detection tooling and air tightness detection.

[0018] In the figure: 1. Bracket; 2. Airtightness detection component; 201. Water tank; 202. Fixing block; 203. Limiting groove; 204. Moving plate; 205. Roller; 206. Operation box; 207. Display meter; 208. Switch button; 209. Plug; 3. Leak detection fixture assembly; 301. Base plate; 302. Support seat; 303. Mounting base 1; 304. Rotary clamping cylinder; 305. Telescopic rod; 306. Chuck; 307. Silicone pad; 308. Limiting seat; 309. Pull ring; 310. Positioning Column; 311, limit column; 312, concave seat; 4, mounting frame; 5, moving assembly; 501, motor one; 502, transmission screw one; 503, screw seat one; 504, sliding seat; 505, slide rail; 506, slider; 507, mounting plate; 508, motor two; 509, transmission screw two; 510, screw seat two; 511, connecting block; 512, mounting base two; 513, telescopic cylinder; 514, suction cup; 6, transport trolley; 7, handrail; 8, universal wheel; 9, metal bipolar plate body. DETAILED DESCRIPTION

[0019] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-5 The utility model provides a technical solution: a metal bipolar plate airtightness detection device, including a bracket 1 and a mounting frame 4, an airtightness detection component 2 is fixedly installed on the top of the bracket 1, a leak detection tooling component 3 is fixedly installed on the top of the airtightness detection component 2, a moving component 5 is fixedly installed on the top of the mounting frame 4, a transport trolley 6 is provided on the outside of the bracket 1, a handrail 7 is welded to the top of the transport trolley 6, a universal wheel 8 is provided at the bottom of the transport trolley 6, and a metal bipolar plate body 9 is provided on the top of the leak detection tooling component 3.

[0021] Furthermore, the airtight detection component 2 includes a water tank 201, a fixed block 202, a limiting groove 203, a movable plate 204, a roller 205, an operation box 206, a display meter 207, a switch button 208 and a plug 209. The water tank 201 is fixedly installed on the top of the bracket 1, and the fixed block 202 is fixedly installed on the top of the water tank 201 by bolts. The limiting groove 203 is provided on the outside of the fixed block 202, the top of the water tank 201 is provided with a movable plate 204, the outside of the movable plate 204 is provided with a roller 205, the top of the water tank 201 is fixedly installed with an operation box 206, and the water tank A display meter 207 is fixedly installed on the top of 201, and a switch button 208 is fixedly installed on the outside of the display meter 207. A plug 209 is provided on the outside of the water tank 201. The roller 205 is slidably connected to the limit groove 203, and the plug 209 is detachably installed. By providing an airtightness detection component 2, the specific leakage location of the metal bipolar plate can be judged by the position of the bubbles emerging from the water, so as to better replace and repair the metal bipolar plate. The operation is simple and convenient, and the airtightness of the test is easy to observe, which facilitates the staff to accurately and quickly perform airtightness detection on the metal bipolar plate, and has high practicality.

[0022] Furthermore, the fixed blocks 202 and the rollers 205 are provided in the same number, and the multiple fixed blocks 202 and the rollers 205 are all adapted to each other. Through the cooperation between the fixed blocks 202 and the rollers 205, the movable plate 204 can be moved up and down quickly, thereby reducing the friction between the movable plate 204 and the fixed blocks 202, and having high practicality.

[0023] Furthermore, the leak detection fixture assembly 3 includes a base plate 301, a support base 302, a mounting base 303, a rotary clamping cylinder 304, a telescopic rod 305, a chuck 306, a silicone pad 307, a limit seat 308, a pull ring 309, a positioning column 310, a limit column 311 and a concave seat 312. The top of the movable plate 204 is fixedly mounted with the base 301, the top of the base 301 is fixedly mounted with the support base 302, the top of the base 301 is fixedly mounted with the mounting base 303, the top of the mounting base 303 is fixedly mounted with the rotary clamping cylinder 304, the movable end of the rotary clamping cylinder 304 is fixedly mounted with the telescopic rod 305, and the end of the telescopic rod 305 away from the rotary clamping cylinder 304 is fixedly mounted with the chuck 306. 6. A silicone pad 307 is fixedly installed on the bottom of the chuck 306, a limiting seat 308 is fixedly installed on the top of the bottom plate 301, a pull ring 309 is fixedly installed on the top of the bottom plate 301, a positioning column 310 is fixedly installed on the top of the bottom plate 301, a limiting column 311 is fixedly installed on the top of the bottom plate 301, and a concave seat 312 is fixedly installed on the top of the bottom plate 301. The limiting seat 308 and the concave seat 312 are both adapted to the metal bipolar plate body 9, and the positioning column 310 and the limiting column 311 are in contact with the metal bipolar plate body 9. By providing the leak detection tooling assembly 3, the metal bipolar plate is further fixed, so that the metal bipolar plate is not prone to shaking during airtightness detection, thereby ensuring the accuracy of the detection data and improving work efficiency.

[0024] Furthermore, four identical mounting bases 303, rotary clamping cylinders 304, telescopic rods 305, chucks 306 and silicone pads 307 are provided. The four mounting bases 303, rotary clamping cylinders 304, telescopic rods 305, chucks 306 and silicone pads 307 are diagonally distributed with respect to the vertical center line of the base plate 301. Through the action of multiple rotary clamping cylinders 304, the metal bipolar plate body 9 can be better fixed, thereby improving the accuracy of the airtightness detection of the metal bipolar plate body 9 and improving the detection efficiency.

[0025] Furthermore, the moving assembly 5 includes a motor 1 501, a transmission screw 1 502, a screw seat 1 503, a sliding seat 504, a slide rail 505, a slider 506, a mounting plate 507, a motor 2 508, a transmission screw 2 509, a screw seat 2 510, a connecting block 511, a mounting base 2 512, a telescopic cylinder 513 and a suction cup 514. The top of the mounting frame 4 is fixedly mounted with a motor 1 501, the output end of the motor 1 501 is fixedly mounted with a transmission screw 1 502, the top of the mounting frame 4 is fixedly mounted with a screw seat 1 503, the outer side of the transmission screw 1 502 is threadedly connected to the sliding seat 504, the top of the mounting frame 4 is fixedly mounted with a slide rail 505, the top of the slide rail 505 is slidably connected to the slider 506, the top of the sliding seat 504 is fixedly mounted with a mounting plate 507 by bolts, and the top of the mounting plate 507 is fixedly mounted with an electric motor. Machine 2 508, the output end of motor 2 508 is fixedly installed with transmission screw 2 509, the top of the mounting plate 507 is fixedly installed with screw seat 2 510, the outer side of transmission screw 2 509 is threadedly connected with connecting block 511, the bottom of connecting block 511 is fixedly installed with mounting base 2 512, the bottom of mounting base 2 512 is fixedly installed with telescopic cylinder 513, the movable end of telescopic cylinder 513 is fixedly installed with suction cup 514, the sliding seat 504 is the same height as the slider 506, and the top of the slider 506 is fixedly installed with mounting plate 507 by bolts. By setting up the moving component 5 and cooperating with the transport trolley 6, the operating steps of the staff are effectively reduced, the overall stability is increased, and the equipment is all integrated design, which improves the detection efficiency, accelerates the production efficiency of metal bipolar plates, and reduces the labor intensity of the staff.

[0026] Furthermore, a metal bipolar plate body 9 is provided on the top of the transport trolley 6, and two identical groups of transport trolleys 6 are provided. The two groups of transport trolleys 6 are symmetrically distributed about the vertical center line of the airtightness detection component 2. By setting up two groups of transport trolleys 6, the staff only needs to place the metal bipolar plate body 9 to be tested on the transport trolley 6 to start the airtightness test of the product. The operation is simple and convenient, and the practicality is high.

[0027] Working principle: When in use, the staff first places the metal bipolar plate body 9 to be tested on the transport trolley 6, and then pushes the two groups of transport trolleys 6 to both sides of the airtight detection component 2. At this time, the staff starts motor 1 501, so that the suction cup 514 at the bottom of the telescopic cylinder 513 is directly above the metal bipolar plate body 9, and then starts motor 2 508 again, so that the connecting block 511 drives the telescopic cylinder 513 to move. At this time, the staff starts the telescopic cylinder 513, so that the telescopic cylinder 513 drives the suction cup 514 to move. When the suction cup 514 contacts the metal bipolar plate body 9, it is sucked. At this time, the telescopic cylinder 513 is retracted, and the motor 1 501 and the motor 2 508 are started again, so that the metal bipolar plate body 9 is directly above the leak detection fixture assembly 3, and the telescopic cylinder 513 is started again to accurately place the metal bipolar plate body 9 on the leak detection fixture assembly 3. At this time, the staff starts the retracting cylinder 513. The clamping cylinder 304 is screwed so that the metal bipolar plate body 9 is firmly fixed on the leak detection fixture assembly 3, and at the same time, the positioning column 310 and the limit column 311 are in contact with the metal bipolar plate body 9. At this time, the staff starts the airtightness detection assembly 2 and slides the movable plate 204 in the limit groove 203 outside the fixed block 202 through the roller 205. When the entire leak detection fixture assembly 3 and the metal bipolar plate body 9 are all immersed in water, the airtightness detection of the metal bipolar plate body 9 is started. If no bubbles appear, there is no leakage in the metal bipolar plate body 9. If bubbles appear, the specific location of the leakage in the metal bipolar plate body 9 can be identified according to the position of the bubbles. At this time, the entire detection of the metal bipolar plate body 9 has been completed. At this time, the staff only needs to repeat the above process to perform airtightness detection on all the metal bipolar plate bodies 9. The operation is simple and convenient, and the accuracy is high.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A metal bipolar plate airtightness detection device, comprising a bracket (1) and a mounting frame (4), characterized in that: An airtightness detection assembly (2) is fixedly mounted on the top of the bracket (1), a leak detection fixture assembly (3) is fixedly mounted on the top of the airtightness detection assembly (2), a moving assembly (5) is fixedly mounted on the top of the mounting frame (4), a transport trolley (6) is provided on the outside of the bracket (1), a handrail (7) is welded to the top of the transport trolley (6), a universal wheel (8) is provided at the bottom of the transport trolley (6), and a metal bipolar plate body (9) is provided on the top of the leak detection fixture assembly (3).

2. The metal bipolar plate airtightness detection device according to claim 1, characterized in that: The airtightness detection assembly (2) comprises a water tank (201), a fixed block (202), a limiting groove (203), a movable plate (204), a roller (205), an operation box (206), a display meter (207), a switch button (208) and a plug (209). The water tank (201) is fixedly mounted on the top of the bracket (1). A fixing block (202) is fixedly installed on the top of the water tank (201) by bolts, and a limiting groove (203) is provided on the outer side of the fixing block (202). A movable plate (204) is provided on the top of the water tank (201), and a roller (205) is provided on the outer side of the movable plate (204). An operation box (206) is fixedly installed on the top of the water tank (201), a display meter (207) is fixedly installed on the top of the water tank (201), and a switch button (208) is fixedly installed on the outer side of the display meter (207). A plug (209) is provided on the outer side of the water tank (201), the roller (205) is slidably connected to the limiting groove (203), and the plug (209) is detachably installed.

3. The metal bipolar plate airtightness detection device according to claim 2, characterized in that: The fixed blocks (202) and the rollers (205) are provided in equal numbers, and the plurality of fixed blocks (202) and the rollers (205) are all adapted to each other.

4. The metal bipolar plate airtightness detection device according to claim 2, characterized in that: The leak detection fixture assembly (3) includes a base plate (301), a support seat (302), a mounting base (303), a rotary clamping cylinder (304), a telescopic rod (305), a chuck (306), a silicone pad (307), a limit seat (308), a pull ring (309), a positioning column (310), a limit column (311) and a concave seat (312), the top of the movable plate (204) is fixedly mounted with the base plate (301), the top of the base plate (301) is fixedly mounted with the support seat (302), the top of the base plate (301) is fixedly mounted with the mounting base (303), the top of the mounting base (303) is fixedly mounted with the rotary clamping cylinder (304), and the movable end of the rotary clamping cylinder (304) is fixedly mounted with the telescopic rod (305). A chuck (306) is fixedly mounted on one end of the telescopic rod (305) away from the rotary clamping cylinder (304), a silicone pad (307) is fixedly mounted on the bottom of the chuck (306), a limiting seat (308) is fixedly mounted on the top of the base plate (301), a pull ring (309) is fixedly mounted on the top of the base plate (301), a positioning column (310) is fixedly mounted on the top of the base plate (301), a limiting column (311) is fixedly mounted on the top of the base plate (301), a concave seat (312) is fixedly mounted on the top of the base plate (301), the limiting seat (308) and the concave seat (312) are both compatible with the metal bipolar plate body (9), and the positioning column (310) and the limiting column (311) are both in contact with the metal bipolar plate body (9).

5. The metal bipolar plate airtightness detection device according to claim 4, characterized in that: The mounting base 1 (303), the rotary clamping cylinder (304), the telescopic rod (305), the chuck (306) and the silicone pad (307) are provided in four identical portions, and the four mounting base 1 (303), the rotary clamping cylinder (304), the telescopic rod (305), the chuck (306) and the silicone pad (307) are diagonally distributed with respect to the vertical center line of the base plate (301).

6. The metal bipolar plate airtightness detection device according to claim 1, characterized in that: The moving assembly (5) includes a motor (501), a transmission screw (502), a screw seat (503), a sliding seat (504), a slide rail (505), a slider (506), a mounting plate (507), a motor (508), a transmission screw (509), a screw seat (510), a connecting block (511), a mounting base (512), a telescopic cylinder (513) and a suction cup (514). The top of the mounting frame (4) is fixedly mounted with the motor (501), the output end of the motor (501) is fixedly mounted with the transmission screw (502), the top of the mounting frame (4) is fixedly mounted with the screw seat (503), the transmission screw (502) The outer side of the mounting frame (4) is connected to a sliding seat (504) by thread, the top of the mounting frame (4) is fixedly installed with a slide rail (505), the top of the slide rail (505) is slidably connected to a slider (506), the top of the sliding seat (504) is fixedly installed with a mounting plate (507) by bolts, the top of the mounting plate (507) is fixedly installed with a second motor (508), the output end of the second motor (508) is fixedly installed with a second transmission screw (509), the top of the mounting plate (507) is fixedly installed with a second screw seat (510), the outer side of the second transmission screw (509) is connected to a connecting block (511), the connecting block (511) The bottom of the second mounting base (512) is fixedly installed, the bottom of the second mounting base (512) is fixedly installed with a telescopic cylinder (513), the movable end of the telescopic cylinder (513) is fixedly installed with a suction cup (514), the sliding seat (504) and the slider (506) are at the same height, and the top of the slider (506) is fixedly installed with a mounting plate (507) by bolts.

7. The metal bipolar plate airtightness detection device according to claim 1, characterized in that: A metal bipolar plate body (9) is provided on the top of the transport trolley (6), and two identical groups of the transport trolleys (6) are provided. The two groups of the transport trolleys (6) are symmetrically distributed about the vertical center line of the airtightness detection assembly (2).

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