CN111890256A - Clamping device for bipolar plate and using method thereof - Google Patents

Abstract

The invention relates to the technical field of new energy, and discloses a bipolar plate clamping device and a method of using the same, which are used for clamping the bipolar plate, wherein the bipolar plate clamping device comprises: a body, and the body is connected to a working On the stage, the body is provided with a bipolar plate positioning groove and a pressure plate positioning groove, and the pressure plate positioning groove is connected to the edge of the bipolar plate positioning groove; the anti-deformation cover plate is used to flatly press the bipolar plate on the bipolar plate. plate positioning groove; pressure plate, the pressure plate is installed in the pressure plate positioning groove, and can press and position the bipolar plate in the bipolar plate positioning groove; the pressing component, the pressing component includes a pressing column and a pressing block, and the pressing column Connected to the body, the pressing block is connected to the pressing column and pressed against the pressing plate. Through the above structure, the bipolar plate clamping device can clamp the bipolar plate quickly and conveniently, which is beneficial to improve production efficiency and reduce production cost.

Description

Clamping device for bipolar plate and method of using the same

technical field

The invention relates to the technical field of new energy, in particular to a bipolar plate clamping device and a method for using the same.

Background technique

At present, fuel cells are one of the development trends in the field of new energy, and the application of fuel cells in various types of vehicles is imperative. As the core component of the fuel cell, the graphite bipolar plate plays a very important role in the normal operation of the fuel cell.

Graphite bipolar plates are non-metallic ultra-thin parts, which are easily deformed during processing, and the processing accuracy is difficult to ensure. Moreover, the processing technology is complex, and the processing process is not easy to clamp.

Most of the existing processing methods of graphite bipolar plates use vacuum suction cups for clamping. Since the vacuum suction cups have poor force-bearing performance, it is not easy to clamp, resulting in low production efficiency. In addition, in order to ensure the machining accuracy of the graphite bipolar plate, it is necessary to repeatedly process the graphite bipolar plate to meet the machining requirements, and the production cost is high. In addition, since the vacuum suction cup needs to use compressed air, it has high requirements on sealing, and it needs to consume the sealing tape to ensure the normal adsorption function of the vacuum suction cup, which further increases the production cost.

SUMMARY OF THE INVENTION

One object of the present invention is to provide a bipolar plate clamping device, which is fast and convenient for bipolar plate clamping, which is beneficial to improve production efficiency and reduce production cost.

For this purpose, the present invention adopts the following technical solutions:

A bipolar plate clamping device for clamping the bipolar plate, comprising: a main body, the main body is connected to a worktable, and a bipolar plate positioning groove and a pressing plate positioning groove are opened on the main body, so that the The pressure plate positioning groove is communicated with the edge of the bipolar plate positioning groove; an anti-deformation cover plate is used to flatly press the bipolar plate in the bipolar plate positioning groove; the pressure plate, the The pressing plate is installed in the positioning groove of the pressing plate, and can press and position the bipolar plate in the positioning groove of the bipolar plate; the pressing assembly includes a pressing column and a pressing block, so The pressing column is connected to the body, and the pressing block is connected to the pressing column and pressed against the pressing plate.

As a preferred solution of a bipolar plate clamping device, the bipolar plate positioning groove is provided with a collection groove, and the collection groove is used to collect debris generated during processing of the bipolar plate.

As a preferred solution of a bipolar plate clamping device, it further includes a collection drawer, the collection drawer is arranged in the body and is located below the collection groove, and the inner cavity of the collection drawer is connected to the collection drawer through a communication hole. The collection tank is connected.

As a preferred solution of a bipolar plate clamping device, a plug is provided in the communication hole, and the plug can be blocked in the communication hole.

As a preferred solution of a bipolar plate clamping device, the body is provided with a first chute, and the collection drawer is slidably connected to the first chute.

As a preferred solution of a bipolar plate clamping device, the body includes a first side surface and a second side surface arranged oppositely, and the bipolar plate positioning groove and the pressure plate positioning groove are both arranged on the first side surface above, the second side abuts on the worktable.

As a preferred solution of a bipolar plate clamping device, a plurality of weight reduction grooves are provided on the second side surface, and the plurality of weight reduction grooves are arranged on the second side surface at intervals.

As a preferred solution of a bipolar plate clamping device, it further includes a connecting assembly, a second chute is provided on the worktable, one end of the connecting assembly is slidably connected to the second chute, and the connection The other end of the assembly presses the body on the table.

As a preferred solution of a bipolar plate clamping device, the connection assembly includes a connection plate and a slider, the slider is slidably connected in the second chute, and one end of the connection plate is connected to the On the slider, the other end of the connecting plate presses the body on the worktable.

Another object of the present invention is to provide a method of using a bipolar plate clamping device, through which an operator can quickly clamp the bipolar plate, which is beneficial to improve production efficiency.

For this purpose, the present invention adopts the following technical solutions:

A method of using the bipolar plate clamping device described in the above scheme, comprising the following steps:

Connect the body to the workbench, and use the dial indicator to align the body;

placing the bipolar plate in the bipolar plate positioning groove, and making an apex angle of the bipolar plate fit with an apex angle in the bipolar plate positioning groove;

Pressing the anti-deformation cover plate on the bipolar plate, and using the anti-deformation cover plate to continuously press the bipolar plate for a preset time;

installing the pressing plate in the pressing plate positioning groove, and pressing the pressing plate against the bipolar plate through the pressing assembly;

The anti-deformation cover plate is removed first, and then the bipolar plate is processed.

Beneficial effects of the present invention:

The invention provides a bipolar plate clamping device, which is used for clamping the bipolar plate when processing the bipolar plate, which comprises a main body, an anti-deformation cover plate, a pressing plate and a pressing component. On the upper part, the body is provided with a bipolar plate positioning groove and a pressure plate positioning groove, the bipolar plate and the pressure plate are respectively installed in the bipolar plate positioning groove and the pressure plate positioning groove, and the pressure plate positioning groove is communicated with the edge of the bipolar plate positioning groove, so that the pressure plate When installed in the pressure plate positioning groove, it can be pressed on the bipolar plate, and the pressure plate can press and position the bipolar plate in the bipolar plate positioning groove under the action of the pressing component, so as to realize the clamping and positioning of the bipolar plate. In this process, the deformation-resistant cover plate is pressed against the bipolar plate, which can flatly press the bipolar plate in the bipolar plate positioning groove, thereby preventing the bipolar plate from being deformed during the clamping process. Through the above structure, the bipolar plate clamping device not only fast and convenient clamping the bipolar plate, but also makes the production efficiency high and the production cost low, and can also prevent the bipolar plate from being deformed, which is beneficial to improve the subsequent clamping of the bipolar plate. machining accuracy.

Description of drawings

1 is a schematic structural diagram of a bipolar plate clamping device provided by a specific embodiment of the present invention;

2 is a schematic structural diagram of the bipolar plate clamping device provided by the specific embodiment of the present invention after removing the anti-deformation cover plate;

3 is an exploded schematic diagram of the bipolar plate clamping device provided by the specific embodiment of the present invention after the anti-deformation cover plate is removed;

4 is a schematic structural diagram of the body of the bipolar plate clamping device provided by the specific embodiment of the present invention;

5 is a top view of the body of the bipolar plate clamping device provided by the specific embodiment of the present invention;

6 is a schematic structural diagram of a long pressing plate and a short pressing plate in the bipolar plate clamping device provided by the specific embodiment of the present invention;

7 is a schematic structural diagram of a collection drawer of a bipolar plate clamping device provided by a specific embodiment of the present invention;

8 is a schematic structural diagram of a compression assembly of a bipolar plate clamping device provided by a specific embodiment of the present invention;

9 is an exploded schematic view of the connection assembly of the bipolar plate clamping device provided by the specific embodiment of the present invention;

10 is a schematic structural diagram of an anti-deformation cover plate of a bipolar plate clamping device provided by a specific embodiment of the present invention;

FIG. 11 is a flowchart of a method of using the bipolar plate clamping device provided by the specific embodiment of the present invention.

In the picture:

1. Main body; 11. Bipolar plate positioning slot; 111. Collection slot; 112. Connecting hole; 113. Plug; 12. Pressure plate positioning slot; 13. First chute; ;2, anti-deformation cover plate; 21, grip; 3, pressure plate; 31, long pressure plate; 32, short pressure plate; 33, abutting surface; 4, pressing component; 41, pressing column; 42, pressing block ;421, pressing contact head; 5, collecting drawer; 51, handle; 6, connecting assembly; 61, connecting plate; 62, sliding block; 63, connecting bolt; 100, bipolar plate; 101, workbench; 102, Second chute.

Detailed ways

In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only the present invention. Some examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship 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 in specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

The present invention provides a bipolar plate clamping device. The bipolar plate clamping device is used to clamp the bipolar plate 100 when processing the bipolar plate 100. As shown in FIG. 1 to FIG. 3 , the bipolar plate 100 is clamped. The clamping device of the pole plate includes a main body 1, a pressing plate 3 and a pressing assembly 4. The main body 1 is connected to the worktable 101, and the main body 1 is provided with a bipolar plate positioning groove 11 and a pressing plate positioning groove 12. The bipolar plate 100 and the The pressure plate 3 is installed in the bipolar plate positioning groove 11 and the pressure plate positioning groove 12 respectively, and the pressure plate positioning groove 12 is connected to the edge of the bipolar plate positioning groove 11, so that the pressure plate 3 can be pressed against the bipolar plate when installed in the pressure plate positioning groove 12. 100 on. The pressing assembly 4 is connected to the body 1 , and the pressing plate 3 can press and position the bipolar plate 100 in the bipolar plate positioning groove 11 under the action of the pressing assembly 4 to realize the clamping and positioning of the bipolar plate 100 . Through the above structure, the bipolar plate 100 can be clamped quickly and conveniently by the bipolar plate clamping device, which is beneficial to improve production efficiency and reduce production cost.

As shown in FIG. 4 , in this embodiment, the body 1 includes a first side surface and a second side surface that are arranged opposite to each other, the bipolar plate positioning groove 11 and the pressure plate positioning groove 12 are both arranged on the first side surface, and the second side surface abuts on the workbench 101. Preferably, a mounting hole 15 is opened on the first side, one end of the pressing component 4 is connected to the mounting hole 15, and the other end presses the pressing plate 3 on the bipolar plate 100, so that the bipolar plate 100 is pressed and positioned on the bipolar plate 100. board positioning slot 11. More preferably, a weight-reducing groove 14 is formed on the second side surface, and the weight-reducing groove 14 can reduce the weight of the main body 1 and the materials used, which is beneficial to reduce the cost of the bipolar plate clamping device. Specifically, a plurality of weight reduction grooves 14 are provided, and the plurality of weight reduction grooves 14 are arranged on the second side surface at intervals, which can further reduce the weight of the main body 1, reduce the materials used, and reduce the cost of the bipolar plate clamping device.

As shown in FIGS. 4 and 5 , preferably, the pressure plate positioning groove 12 includes two oppositely arranged long positioning grooves and two oppositely arranged short positioning grooves. As shown in FIG. 6 , the pressure plate 3 includes a long pressure plate 31 and a short pressure plate. 32. The two long positioning grooves are arranged along the length direction of the bipolar plate positioning groove 11, the two short positioning grooves are arranged along the width direction of the bipolar plate positioning groove 11, and the long pressing plate 31 presses the lengthwise side of the bipolar plate 100 on the In the bipolar plate positioning groove 11 , the short pressing plate 32 presses the widthwise side of the bipolar plate 100 into the bipolar plate positioning groove 11 , so that the pressing plate 3 can firmly position the bipolar plate 100 . More preferably, both the long pressing plate 31 and the short pressing plate 32 are provided with abutting surfaces 33 , and the abutting surfaces 33 are used to abut on the bipolar plate 100 .

It can be understood that the number of bipolar plate positioning grooves 11 on the body 1 of the bipolar plate clamping device can be one or at least two, so that the bipolar plate clamping device can clamp one bipolar plate at a time. The polar plate 100 or at least two bipolar plates 100 can be set by those skilled in the art according to the actual situation.

Preferably, a collection groove 111 is provided in the bipolar plate positioning groove 11 , and the collection groove 111 is used to collect and store the debris generated during the processing of the bipolar plate 100 . More preferably, the bipolar plate clamping device further includes a collection drawer 5, the collection drawer 5 is arranged in the main body 1 and is located below the collection groove 111, and the inner cavity of the collection drawer 5 communicates with the collection groove 111 through the communication hole 112. , so that the debris collected in the collection tank 111 can enter the collection drawer 5 through the communication hole 112, which can improve the storage capacity of the bipolar plate clamping device for the bipolar plate 100 debris, and prolong the dumping cycle of the debris. Minimize the impact of dumped debris on production. As shown in FIG. 7 , specifically, the collection drawer 5 is provided with a handle 51 , and the operator can push and pull the collection drawer 5 through the handle 51 to facilitate the disassembly and assembly of the collection drawer 5 . In this embodiment, two collection grooves 111 are provided, and the two collection grooves 111 are located at two ends of the bipolar plate positioning groove 11 respectively, and can collect and store the bipolar plate 100 from both ends of the bipolar plate 100 for processing. debris generated.

Specifically, the second side surface of the main body 1 is provided with a first chute 13 , and the collection drawer 5 is slidably connected to the first chute 13 , so that the collection drawer 5 can be pulled out from the first chute 13 to remove the debris therein. Dumping is performed so that the dumping of the crumbs is easy. It should be noted that the communication hole 112 is provided with a plug 113, and the plug 113 can be plugged in the communication hole 112, when there is no need for debris to flow into the collection drawer 5 (for example, when the collection drawer 5 dumps debris) , the communication hole 112 can be blocked by the plug 113 .

As shown in FIG. 8 , specifically, the pressing assembly 4 includes a pressing column 41 and a pressing block 42 , the pressing column 41 is connected to the mounting hole 15 , and the pressing block 42 is slidably connected to the pressing column 41 and can be tightened Press on the platen 3. Preferably, the pressing block 42 is provided with a pressing contact head 421 , and the pressing block 42 is pressed against the pressing plate 3 by the pressing contact head 421 . In this embodiment, the pressing column 41 and the pressing block 42 are made of aluminum alloy material, which has certain rigidity and elasticity. (technical method, which will not be repeated here), under a certain range of pressure, the size of the pressing force on the pressing plate 3 can be changed by changing the deformation amount of the pressing block 42 . Preferably, the edges of the pressing column 41 and the pressing block 42 are all chamfered and polished, which can prevent operators from scratching their hands when pressing the pressing plate 3 and improve the safety of the bipolar plate clamping device. .

In this embodiment, the bipolar plate clamping device further includes a connecting assembly 6 , a second chute 102 is provided on the worktable 101 , and one end of the connecting assembly 6 is slidably connected with the second chute 102 . The other end presses the body 1 on the workbench 101 , and the connecting assembly 6 slides in the second chute 102 so that the connecting assembly 6 can adapt to different sizes of the body 1 . Preferably, the main body 1 is provided with a pressing groove, and the other end of the connecting assembly 6 is pressed against the wall surface of the pressing groove to press the main body 1 tightly on the workbench 101 .

As shown in FIG. 9 , specifically, the connecting assembly 6 includes a connecting plate 61 and a sliding block 62 . The sliding block 62 is slidably connected in the second chute 102 , and one end of the connecting plate 61 is connected to the sliding block 62 through a connecting bolt 63 . The other end of the connecting plate 61 is pressed against the wall surface of the pressing groove, so as to press the main body 1 tightly on the table 101 . In this embodiment, the sliding block 62 is a T-shaped block, and the cross-sectional shape of the second sliding groove 102 is T-shaped, so that the sliding block 62 can not only slide in the second sliding groove 102 , but also provide a force to the connecting plate 61 . to press the main body 1 . Preferably, the connecting plate 61 is provided with a waist-shaped hole, and the connecting bolt 63 is connected to the slider 62 after passing through the waist-shaped hole, so that the position of the connecting bolt 63 and the slider 62 relative to the connecting plate 61 can be adjusted.

In this embodiment, the bipolar plate clamping device further includes an anti-deformation cover plate 2, and the anti-deformation cover plate 2 can flatly press the bipolar plate 100 in the bipolar plate positioning groove 11, thereby preventing the bipolar plate 100 from becoming Deformation is beneficial to improve the subsequent machining accuracy of the bipolar plate 100 . As shown in FIG. 10 , preferably, a handle 21 is provided on the anti-deformation cover plate 2 , so that the operator can press the anti-deformation cover plate 2 on the bipolar plate 100 through the handle.

This embodiment also provides a method for using the bipolar plate clamping device, as shown in FIG. 11 , including the following steps:

S1. Connect the main body 1 to the workbench 101, and use a dial indicator to align the main body 1.

That is, first place the main body 1 on the table 101 of the CNC machine tool, then use the connecting assembly 6 to fix the main body 1 on the table 101, and then use the dial indicator to align the main body 1 to make the main body 1 installed in place. Then, the collection drawer 5 is installed in the first chute 13 of the main body 1 , the plug 113 is blocked in the communication hole 112 , and the main body 1 is fixedly connected to the workbench 101 by the connecting assembly 6 .

S2. Place the bipolar plate 100 in the bipolar plate positioning groove 11 , and make a top corner of the bipolar plate 100 fit with a top corner in the bipolar plate positioning groove 11 .

That is, the bipolar plate 100 is placed flat in the bipolar plate positioning groove 11, and the bipolar plate 100 is moved so that one vertex of the bipolar Bipolar plate 100 is positioned.

S3. Press the anti-deformation cover plate 2 on the bipolar plate 100, and use the anti-deformation cover plate 2 to continuously press the bipolar plate 100 for a preset time.

That is, the anti-deformation cover plate 2 is pressed on the bipolar plate 100, and the operator continuously presses the anti-deformation cover plate 2 on the bipolar plate 100 for a preset time by using a handle. Preferably, the preset time range is set to 4s-6s, and the preset time in this embodiment is set to 5s.

S4. Install the pressure plate 3 in the pressure plate positioning groove 12, and press the pressure plate 3 to press the bipolar plate 100 through the pressing assembly 4.

That is, the pressure plate 3 is first pressed on the bipolar plate 100 and placed in the pressure plate positioning groove 12 to fix the bipolar plate 100 . Then, the pressing plate 3 is pressed against the bipolar plate 100 by the pressing assembly 4 to realize the fixing of the bipolar plate 100 .

S5. First remove the anti-deformation cover plate 2, and then process the bipolar plate 100.

That is, after removing the deformation-preventing cover plate 2, the outer surface of the bipolar plate 100 facing upward is processed by a numerically controlled machine tool.

S6. Process the bipolar plate 100 after turning the bipolar plate 100 over.

That is, the bipolar plate 100 is turned over so that the outer side of the bipolar plate 100 is turned up, and the outer side of the bipolar plate 100 is processed again through steps S2 , S3 , S4 and S5 .

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the embodiments of the present invention. For those of ordinary skill in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. There is no need and cannot be exhaustive of all implementations here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (10)

1. a clamping device for bipolar plate, for clamping bipolar plate (100), is characterized in that, comprises: A main body (1), the main body (1) is connected to a workbench (101), a bipolar plate positioning groove (11) and a pressure plate positioning groove (12) are formed on the main body (1), and the pressure plate positioning groove (12) communicated with the edge of the bipolar plate positioning groove (11); an anti-deformation cover plate (2), the anti-deformation cover plate (2) is used to flatly press the bipolar plate (100) in the bipolar plate positioning groove (11); a pressure plate (3), the pressure plate (3) is installed in the pressure plate positioning groove (12), and can press and position the bipolar plate (100) in the bipolar plate positioning groove (11); A pressing assembly (4), the pressing assembly (4) includes a pressing column (41) and a pressing block (42), the pressing column (41) is connected to the body (1), the A pressing block (42) is connected to the pressing column (41) and pressed against the pressing plate (3). 2. The bipolar plate clamping device according to claim 1, wherein a collection groove (111) is provided in the bipolar plate positioning groove (11), and the collection groove (111) is used for collecting Debris generated during processing of the bipolar plate (100). 3 . The bipolar plate clamping device according to claim 2 , further comprising a collection drawer ( 5 ), wherein the collection drawer ( 5 ) is arranged in the body ( 1 ) and located in the collection drawer ( 3 ). 4 . Below the groove (111), the inner cavity of the collection drawer (5) communicates with the collection groove (111) through a communication hole (112). 4 . The bipolar plate clamping device according to claim 3 , wherein a plug ( 113 ) is provided in the communication hole ( 112 ), and the plug ( 113 ) can be plugged on the in the communication hole (112). 5 . The bipolar plate clamping device according to claim 3 , wherein a first chute ( 13 ) is opened on the main body ( 1 ), and the collection drawer ( 5 ) is slidably connected to the in the first chute (13). 6. The bipolar plate clamping device according to claim 1, wherein the body (1) comprises a first side surface and a second side surface arranged oppositely, and the bipolar plate positioning groove (11) and The pressing plate positioning grooves (12) are all arranged on the first side surface, and the second side surface abuts on the worktable (101). 7 . The bipolar plate clamping device according to claim 6 , wherein a plurality of weight reduction grooves ( 14 ) are provided on the second side surface, and the plurality of weight reduction grooves ( 14 ) are arranged at intervals. 8 . on the second side. 8. The bipolar plate clamping device according to claim 1, further comprising a connecting assembly (6), a second chute (102) is provided on the worktable (101), and the connecting One end of the assembly (6) is slidably connected with the second chute (102), and the other end of the connecting assembly (6) presses the body (1) on the worktable (101). 9 . The bipolar plate clamping device according to claim 8 , wherein the connecting assembly ( 6 ) comprises a connecting plate ( 61 ) and a sliding block ( 62 ), and the sliding block ( 62 ) is slidably connected. 10 . In the second chute (102), one end of the connecting plate (61) is connected to the slider (62), and the other end of the connecting plate (61) presses the body (1) on the workbench (101). 10. A method of using the clamping device of a bipolar plate as claimed in any one of claims 1-9, characterized in that, comprising the steps: Connect the main body (1) to the workbench (101), and use a dial indicator to align the main body (1); The bipolar plate (100) is placed in the bipolar plate positioning groove (11), and a top corner of the bipolar plate (100) is fitted to a top of the bipolar plate positioning groove (11) horn; Covering the anti-deformation cover plate (2) on the bipolar plate (100), and using the anti-deformation cover plate (2) to continuously press the bipolar plate (100) for a preset time; The pressure plate (3) is installed in the pressure plate positioning groove (12), and the pressure plate (3) is pressed against the bipolar plate (100) by the pressing assembly (4); The anti-deformation cover plate (2) is removed first, and then the bipolar plate (100) is processed.

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