An automatic gluing and fixing device for hydrogen fuel cell metal plates

Abstract

The present invention belongs to the field of hydrogen fuel cell production equipment, and provides an automatic fixing device for dispensing hydrogen fuel cell metal plates. The device has magnetism when the electromagnet is energized, and can pre-absorb the first pressing plate and the second pressing plate. When the metal plate is placed on the placement platform, the moving module moves it to the bottom of the first pressing plate and the second pressing plate. At this time, the electromagnet is powered off, the magnetism disappears, and the first pressing plate and the second pressing plate are put down to press the metal plate. After the first pressing plate is connected to the telescopic rod of the pull-down mechanism by screws and other connecting parts, the pull-down mechanism is started, so that the first pressing plate can be firmly pressed against the periphery of the metal plate, and the second pressing plate can press against the central area of ​​the metal plate by mutual attraction with the permanent magnet. It can be seen that the present invention adopts an automatic fixing device to achieve the fixation of the metal plate, saves manual operation, and is convenient for the subsequent automatic dispensing of the metal plate.

Description

Technical Field

[0001] The invention belongs to the field of hydrogen fuel cell production equipment, and in particular relates to an automatic glue dispensing and fixing device for a hydrogen fuel cell metal plate. Background Art

[0002] Fuel cells are a promising new power source, which generally use hydrogen, carbon, methanol, borohydride, coal gas or natural gas as fuel, as the negative electrode, and oxygen in the air as the positive electrode. The main difference between them and ordinary batteries is that the active materials of ordinary batteries are placed inside the battery in advance, so the battery capacity depends on the amount of active materials stored; while the active materials (fuel and oxidant) of fuel cells are continuously input while reacting, so this type of battery is actually just an energy conversion device. This type of battery has the advantages of high conversion efficiency, large capacity, high specific energy, wide power range, and no need to charge.

[0003] As a type of proton exchange membrane fuel cell, hydrogen fuel cells can convert chemical energy into electrical energy through redox reactions that occur continuously at the anode and cathode. The electrode plate is an important component of a typical hydrogen fuel cell stack, which serves as both a current collector and a membrane electrode support. The flow channels on the electrode plate are used as channels for fuel hydrogen and oxidants to enter the anode and cathode surfaces, and as channels for taking away water generated during the operation of the fuel cell.

[0004] A metal plate refers to an electrode plate made of metal material, which is a commonly used electrode plate. In the prior art, the channels on the surface of the metal plate are sealed by injecting glue or installing a sealing ring. However, the sealing performance of the glue injection method is poor, and the sealing ring method (i.e., the sealing ring is made separately and then fixed to the metal plate manually) has good sealing performance but cannot achieve automated production.

[0005] The metal plate is a very thin material and needs to be pressed tightly during the dispensing process to prevent the metal plate from warping or bulging. In order to achieve automatic dispensing of the metal plate, it is necessary to develop a device specifically for fixing the metal plate. Summary of the invention

[0006] The object of the present invention is to provide an automatic glue dispensing and fixing device for a hydrogen fuel cell metal plate, which is used for automatically pressing the metal plate so as to realize automatic glue dispensing on the metal plate.

[0007] The present invention is implemented as follows: an automatic dispensing and fixing device for a hydrogen fuel cell metal plate, comprising a pressure plate placing jig, a metal plate placing jig and a moving module; the moving module is transmission-connected to the metal plate placing jig, and is used to drive the metal plate placing jig to move closer to or away from the pressure plate placing jig;

[0008] The metal plate placing fixture comprises a first pressing plate with magnetic conductivity, a second pressing plate with magnetic conductivity, a placing platform for placing the metal plate, a permanent magnet and a pull-down mechanism; the first pressing plate is in the shape of a hollow plate, and the second pressing plate is located in the hollow area of ​​the first pressing plate;

[0009] The first pressing plate is connected to the telescopic rod of the pull-down mechanism through a connecting component. When the pull-down mechanism is working, the first pressing plate can be pulled downward to press the periphery of the metal plate. The permanent magnet is installed at a position below the middle area of ​​the placement platform. The second pressing plate can attract the permanent magnet to press the middle area of ​​the metal plate.

[0010] The pressure plate fixture comprises a lifting module, a lifting frame and a plurality of electromagnets. The plurality of electromagnets are magnetic when powered on and are immediately demagnetized when powered off. The plurality of electromagnets are installed at the bottom of the lifting frame. The lifting module is used to drive the lifting frame and the electromagnets to move up and down.

[0011] The electromagnets are able to attract the first pressure plate and the second pressure plate when energized; when the moving module drives the placement platform to move to directly below the lifting frame, the lifting module drives the lifting frame to move downward, the electromagnets are powered off and demagnetized, the first pressure plate and the second pressure plate are separated from the electromagnets, and press the metal plate located on the placement platform.

[0012] Furthermore, the pull-down mechanism includes four pull-down units respectively arranged below the four sides of the placing platform, each pull-down unit includes a telescopic cylinder, a pull-down rod and a four-bar mechanism, the telescopic cylinder is transmission-connected to the four-bar mechanism, the swing end of the four-bar mechanism is connected with a downward pressure block, the pull-down rod is threadedly connected to the first pressure plate by a screw, and the telescopic cylinder drives the four-bar mechanism to swing, so that the downward pressure block presses the pull-down rod downward.

[0013] Furthermore, each pull-down unit includes a plurality of pull-down rods and a plurality of four-bar mechanisms, the bottom ends of the plurality of pull-down rods are connected to a transmission bar, and the pressing blocks of the plurality of four-bar mechanisms can simultaneously press the transmission bar downwards.

[0014] Furthermore, each pull-down unit also includes an adjusting rod, the top end of which is connected to the four-bar mechanism, and the bottom end of which is threadedly connected to a fixed plate. By twisting the adjusting rod, the swinging end of the four-bar mechanism can be tilted to a certain angle before swinging, thereby achieving the adjustment of the pull-down force of the pull-down rod.

[0015] Furthermore, the multiple four-bar mechanisms in each pull-down unit all share a cross bar, which is located at the bottom of the four-bar mechanism and is fixedly connected to the telescopic rod of the telescopic cylinder.

[0016] Furthermore, a slider is connected to the bottom of the crossbar, and the slider is installed on a linear guide rail.

[0017] Furthermore, the pressure plate fixture also includes a support frame, the lifting module includes upper and lower telescopic cylinders, the upper and lower telescopic cylinders are installed on the top of the support frame, and the telescopic rods of the upper and lower telescopic cylinders are connected to the top of the lifting frame; the lifting frame has a bottom plate, and the bottom plate is located below the support frame, the rod of the lifting frame passes through the top of the support frame and is fixedly connected to the bottom plate, and the plurality of electromagnets are fixed on the bottom plate.

[0018] Furthermore, the lifting frame has a bottom platform for installing the plurality of electromagnets, a top platform for fixedly connecting to the telescopic rods of the upper and lower telescopic cylinders, and a plurality of guide rods connected between the bottom platform and the top platform, and the plurality of guide rods can be slidably penetrated on the top of the support frame.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention provides an automatic fixing device for dispensing hydrogen fuel cell metal plates, which has magnetism when the electromagnet is energized, and can pre-absorb the first pressing plate and the second pressing plate. When the metal plate is placed on the placement platform, the moving module moves it to the bottom of the first pressing plate and the second pressing plate. At this time, the electromagnet is powered off, the magnetism disappears, and the first pressing plate and the second pressing plate are put down to press the metal plate. After the first pressing plate is connected to the telescopic rod of the pull-down mechanism by screws and other connecting parts, the pull-down mechanism is started, so that the first pressing plate can be firmly pressed against the periphery of the metal plate, and the second pressing plate can press against the central area of ​​the metal plate by mutual attraction with the permanent magnet. It can be seen that the present invention adopts an automatic fixing device to achieve the fixation of the metal plate, saves manual operation, and is convenient for the subsequent automatic dispensing of the metal plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of a metal plate placing fixture of an automatic gluing and fixing device for a hydrogen fuel cell metal plate provided by an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 The exploded structural diagram of the metal plate fixture is shown;

[0023] Figure 3 yes Figure 1 The schematic diagram of the exploded structure of the metal plate fixture from another angle is shown;

[0024] Figure 4 yes Figure 1 A schematic longitudinal cross-sectional view of a metal plate fixture is shown;

[0025] Figure 5It is a schematic diagram of the main view of a pressure-releasing plate fixture of an automatic gluing and fixing device for a hydrogen fuel cell metal plate provided by an embodiment of the present invention;

[0026] Figure 6 yes Figure 5 Schematic diagram of the three-dimensional structure of the pressure plate fixture shown. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] See also Figures 1 to 6 , shows an automatic dispensing and fixing device for hydrogen fuel cell metal plate provided by an embodiment of the present invention, which includes a metal plate placing jig 1, a pressure plate placing jig 2, and a moving module. The pressure plate placing jig is used to pre-absorb the pressure plate, the metal plate placing jig is used to place the metal plate, and the moving module is connected to the metal plate placing jig in a transmission manner, and is used to drive the metal plate placing jig to move closer to or away from the pressure plate placing jig.

[0030] The metal plate placing jig 1 comprises a first pressing plate 11 with magnetic conductivity, a second pressing plate 12 with magnetic conductivity, a placing platform 13 for placing the metal plate, a permanent magnet 14 and a pull-down mechanism 15 .

[0031] The first pressing plate 11 is in the shape of a hollow plate. When the metal plate is pressed, the second pressing plate 12 is located in the hollow area of ​​the first pressing plate 11 .

[0032] The first pressing plate 11 is connected to the telescopic rod of the pull-down mechanism 15 through a connecting component. When the pull-down mechanism 15 is working, the first pressing plate 11 can be pulled downward to press the periphery of the metal plate. The permanent magnet 14 is installed below the middle area of ​​the placement platform 13; the second pressing plate 12 can attract the permanent magnet 14 to press the middle area of ​​the metal plate.

[0033] Specifically, the above-mentioned pull-down mechanism 15 includes four pull-down units respectively arranged at the bottom of the four sides of the placement platform 13, each pull-down unit includes a telescopic cylinder 151, a pull-down rod 152 and a four-bar mechanism, the telescopic cylinder 151 is transmission-connected to the four-bar mechanism, the swing end of the four-bar mechanism is connected with a downward pressure block 153, the pull-down rod 152 is threadedly connected to the first pressure plate 11 through screws, the telescopic cylinder 151 drives the four-bar mechanism to swing, so that the downward pressure block 153 presses the pull-down rod 152 downward, and then the pull-down rod 152 pulls the first pressure plate 11 downward to press the metal plate.

[0034] Each pull-down unit includes a plurality of pull-down rods 152, a plurality of four-bar mechanisms, and an adjustment rod 154. The bottom ends of the plurality of pull-down rods 152 are connected to a transmission bar 155, and the pressing blocks 153 of the plurality of four-bar mechanisms can simultaneously press the transmission bar 155 downward. The top end of the adjustment rod 154 is connected to the four-bar mechanism, and the bottom end thereof is threadedly connected to a fixing plate 156. By twisting the adjustment rod 154, the swing end of the four-bar mechanism can be tilted to a certain angle before swinging, thereby realizing the adjustment of the pull-down force of the pull-down rod 152.

[0035] The multiple four-bar mechanisms in each pull-down unit all share a crossbar 157, which is located at the bottom of the four-bar mechanism and is fixedly connected to the telescopic rod of the telescopic cylinder 151. A slider 158 is connected to the bottom of the crossbar 157, and the slider 158 is installed on a linear guide rail 159, so that when the crossbar 157 moves forward and backward, it can move along the guide of the linear guide rail 159.

[0036] The pressure plate fixture 2 comprises a lifting module (ie, an upper and lower telescopic cylinder 21 ), a lifting frame 22 , a plurality of electromagnets 23 and a supporting frame 24 .

[0037] The electromagnets 23 are magnetic when powered on and demagnetized immediately when powered off. The electromagnets 23 are installed at the bottom of the lifting frame 22. The upper and lower telescopic cylinders 21 are used to drive the lifting frame 22 and the electromagnets 23 to move up and down.

[0038] When the electromagnets 23 are powered on, they can attract the first pressure plate 11 and the second pressure plate 12; when the mobile module drives the placement platform 13 to move to the bottom of the lifting frame 22, the upper and lower telescopic cylinders 21 drive the lifting frame 22 to move downward, and the electromagnets 23 are powered off and demagnetized, and the first pressure plate 11 and the second pressure plate 12 are separated from the electromagnets 23 and press the metal plate on the placement platform 13.

[0039] The upper and lower telescopic cylinders 21 are installed on the top of the support frame 24 , and the telescopic rods of the upper and lower telescopic cylinders 21 are connected to the top of the lifting frame 22 .

[0040] The lifting frame 22 has a bottom platform 221 for mounting a plurality of electromagnets 23, a top platform 222 for fixedly connecting with the telescopic rods of the upper and lower telescopic cylinders 21, and a plurality of guide rods 223 connected between the bottom platform 221 and the top platform 222. The plurality of guide rods 223 are slidably disposed on the top of the support frame 24, and the bottom platform 221 is located below the support frame 24.

[0041] This embodiment provides an automatic fixing device for dispensing hydrogen fuel cell metal plates. When the electromagnet 23 is powered on, it has magnetism and can pre-absorb the first pressing plate 11 and the second pressing plate 12. When the metal plate is placed on the placement platform 13, the moving module moves it to the bottom of the first pressing plate 11 and the second pressing plate 12. At this time, the electromagnet 23 is powered off, the magnetism disappears, and the first pressing plate 11 and the second pressing plate 12 are put down to press the metal plate. After the first pressing plate 11 is connected to the telescopic rod of the telescopic cylinder 151 by screws and other connecting parts, the telescopic cylinder 151 is started, so that the first pressing plate 11 can be firmly pressed against the periphery of the metal plate, and the second pressing plate 12 can press the central area of ​​the metal plate by mutual attraction with the permanent magnet 14.

[0042] It can be seen that the present embodiment adopts the automatic fixing device to fix the metal plate, which saves manual operation and facilitates the subsequent automatic gluing of the metal plate.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydrogen fuel cell metal plate dispensing automatic fixing device, characterized in that: It includes a pressure plate placing jig, a metal plate placing jig and a moving module; the moving module is transmission-connected with the metal plate placing jig and is used to drive the metal plate placing jig to move closer to or away from the pressure plate placing jig; The metal plate placing fixture comprises a first pressing plate with magnetic conductivity, a second pressing plate with magnetic conductivity, a placing platform for placing the metal plate, a permanent magnet and a pull-down mechanism; the first pressing plate is in the shape of a hollow plate, and the second pressing plate is located in the hollow area of ​​the first pressing plate; The first pressing plate is connected to the telescopic rod of the pull-down mechanism through a connecting component. When the pull-down mechanism is working, the first pressing plate can be pulled downward to press the periphery of the metal plate. The permanent magnet is installed at a position below the middle area of ​​the placement platform. The second pressing plate can attract the permanent magnet to press the middle area of ​​the metal plate. The pressure plate fixture comprises a lifting module, a lifting frame and a plurality of electromagnets. The plurality of electromagnets are magnetic when powered on and are immediately demagnetized when powered off. The plurality of electromagnets are installed at the bottom of the lifting frame. The lifting module is used to drive the lifting frame and the electromagnets to move up and down. The electromagnets can attract the first pressing plate and the second pressing plate when they are powered on; when the moving module drives the placement platform to move to the bottom of the lifting frame, the lifting module drives the lifting frame to move downward, the electromagnets are powered off and demagnetized, and the first pressing plate and the second pressing plate are separated from the electromagnets and press the metal plate on the placement platform; The pull-down mechanism includes four pull-down units respectively arranged below the four sides of the placement platform, each pull-down unit includes a telescopic cylinder, a pull-down rod and a four-bar mechanism, the telescopic cylinder is transmission-connected to the four-bar mechanism, the swing end of the four-bar mechanism is connected with a pressing block, the pull-down rod is threadedly connected to the first pressing plate through a screw, the telescopic cylinder drives the four-bar mechanism to swing, so that the pressing block presses the pull-down rod downward; The pressure plate fixture also includes a support frame, and the lifting module includes an upper and lower telescopic cylinder, which is installed on the top of the support frame, and the telescopic rods of the upper and lower telescopic cylinders are connected to the top of the lifting frame; the lifting frame has a bottom plate, and the bottom plate is located below the support frame. The rod of the lifting frame passes through the top of the support frame and is fixedly connected to the bottom plate, and the plurality of electromagnets are fixed on the bottom plate.

2. The hydrogen fuel cell metal plate automatic glue dispensing and fixing device as claimed in claim 1, characterized in that: Each pull-down unit includes a plurality of pull-down rods and a plurality of four-bar mechanisms. The bottom ends of the plurality of pull-down rods are connected to a transmission bar. The pressing blocks of the plurality of four-bar mechanisms can simultaneously press the transmission bar downwards.

3. The hydrogen fuel cell metal plate automatic glue dispensing and fixing device as claimed in claim 1, characterized in that: Each pull-down unit also includes an adjusting rod, the top end of which is connected to the four-bar mechanism, and the bottom end of which is threadedly connected to a fixed plate. By twisting the adjusting rod, the swinging end of the four-bar mechanism can be tilted at a certain angle before swinging, thereby achieving the adjustment of the pull-down force of the pull-down rod.

4. The hydrogen fuel cell metal plate automatic glue dispensing and fixing device as claimed in claim 1, characterized in that: The multiple four-bar mechanisms in each pull-down unit all share a cross bar, which is located at the bottom of the four-bar mechanism and is fixedly connected to the telescopic rod of the telescopic cylinder.

5. The hydrogen fuel cell metal plate automatic glue dispensing and fixing device as claimed in claim 4, characterized in that: The bottom of the crossbar is connected with a sliding block, and the sliding block is installed on a straight line guide rail.

6. The hydrogen fuel cell metal plate automatic glue dispensing and fixing device as claimed in claim 5, characterized in that: The lifting frame comprises a bottom platform for installing the electromagnets, a top platform for fixedly connecting with the telescopic rods of the upper and lower telescopic cylinders, and a plurality of guide rods connected between the bottom platform and the top platform. The guide rods are slidably arranged on the top of the support frame.

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