Air-cooled fuel cell processing polar plate stamping die

Abstract

This utility model discloses a stamping die for processing electrode plates of an air-cooled fuel cell, relating to the field of battery processing technology. It includes a work counter and a beam plate. A base plate is provided above the work counter, and a bottom mold is provided at the center of the base plate. A horizontal plate is provided below the bottom mold, and a second hydraulic cylinder is provided on one side of the horizontal plate. A discharge chamber is provided inside the work counter. A column is provided above each of the four corners of the base plate. The beam plate is connected to the columns by screws. A mounting plate is provided below the beam plate, and a first hydraulic cylinder is provided above the mounting plate. The telescopic end of the first hydraulic cylinder is connected to the mounting plate. A punch is provided below the center of the mounting plate. The bottom mold and punch of this stamping die are movably installed with the die body, allowing for the selection of appropriate bottom molds and punches according to the specifications of the electrode plates to be stamped. This eliminates the need to replace the entire die set, meeting the stamping requirements of multiple electrode plate specifications and improving electrode plate stamping efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery processing technology, specifically to a stamping die for processing electrode plates of an air-cooled fuel cell. Background Technology

[0002] Air-cooled fuel cells dissipate heat through forced ventilation or natural air convection. They offer advantages such as strong environmental adaptability, compact structure, low operating costs, and fast start-up. At the positive electrode, a catalyst decomposes hydrogen into electrons and hydrogen ions. Protons pass through the proton exchange membrane to the negative electrode, where they react with oxygen to produce water and heat. The corresponding electrons flow from the positive to the negative electrode through an external circuit, generating electricity. Plate stamping is a key process in the manufacturing of metal bipolar plates for fuel cells. A pressure device and a rigid mold cause plastic deformation of the metal plate, forming the desired flow channel structure.

[0003] Chinese invention patent CN114367583B discloses a stamping die for fuel cell metal plates, including a die and a die base. The die has an ejection mechanism and a die core, with the die core detachably connected to the ejection mechanism. The die core has several forming surfaces. The die base is used to mount the die. The die base also has a power component for driving the die base to move. The ejection mechanism enables the several forming surfaces of the die core to perform staggered forming actions, thereby performing step-by-step forming of the flow field channels of the plate. This invention, with its multiple forming surfaces and step-by-step processing method for stamping the flow field channels of the plate, can maximize the fluidity of the plate substrate, thereby improving the processing accuracy and quality of the plate, greatly facilitating mass production and reducing production costs. However, the stamping die is fixed in place, resulting in poor applicability. It can only stamp one type of plate. When stamping other types of plates, the entire die set needs to be replaced, requiring the addition of spare dies, reducing the stamping efficiency and failing to meet usage requirements. Utility Model Content

[0004] The purpose of this utility model is to provide a stamping die for processing electrode plates of air-cooled fuel cells, so as to solve the problems mentioned in the background art, that the existing stamping dies are set in a fixed manner, which has poor applicability, can only stamp and process electrode plates of one specification, and when stamping electrode plates of other specifications, the entire set of dies needs to be replaced, spare dies need to be added, the stamping efficiency of electrode plates is reduced, and the needs of use cannot be met.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stamping die for processing electrode plates of an air-cooled fuel cell, comprising a work counter and a beam plate, characterized in that: a base plate is provided above the work counter, and the base plate is connected to the work counter by screws; a bottom mold is provided at the center of the base plate, and the bottom mold is connected to the base plate by screws; a mold cavity is provided at the center of the bottom mold; and a horizontal plate is provided below the bottom mold, and the horizontal plate is in contact with the bottom mold.

[0006] A second hydraulic cylinder is provided on one side of the horizontal plate, and the second hydraulic cylinder is connected to the work counter by screws. The telescopic end of the second hydraulic cylinder is connected to the horizontal plate. The work counter is provided with a discharge chamber, which is located below the mold cavity.

[0007] A column is installed above each of the four corners of the base plate. There are four columns, and the columns are fixedly connected to the base plate. The beam plate is connected to the columns by screws, and an installation plate is installed below the beam plate.

[0008] A first hydraulic cylinder is provided above the mounting plate and is connected to the beam plate by screws. The telescopic end of the first hydraulic cylinder is connected to the mounting plate. A punch is provided below the center of the mounting plate and is connected to the mounting plate by screws. The punch is correspondingly provided with the bottom mold.

[0009] Preferably, a guide sleeve is provided at each of the four corners of the mounting plate, and four guide sleeves are provided. The guide sleeves are fixedly connected to the mounting plate, and the guide sleeves are located outside the column and are slidably connected to the column.

[0010] Preferably, the upper end of the base plate is provided with two pads, and the pads are integrated with the base plate. The two pads are located on both sides of the bottom mold. The lower part of the mounting plate is provided with two elastic blocks, and the elastic blocks are fixedly connected to the mounting plate. The two elastic blocks are located on both sides of the punching die and correspond to the positions of the pads.

[0011] Preferably, two connecting seats are provided below the base plate, and the connecting seats are connected to the base plate by screws. The two connecting seats are located on both sides of the horizontal plate, and L-shaped connecting grooves are provided on the inner side of the two connecting seats. The side end of the horizontal plate extends into the interior of the L-shaped connecting grooves, and the horizontal plate is slidably connected to the connecting seats.

[0012] Preferably, multiple balls are equidistantly arranged on the end faces of both sides of the horizontal plate. The balls are in contact with the inner wall of the L-shaped connecting groove and are in rolling connection with the connecting seat and the horizontal plate.

[0013] Preferably, a receiving plate is provided on one side of the lower part of the work counter, and the receiving plate is connected to the work counter by screws. The receiving plate is located at the lower end of the discharge chamber. A maintenance plate is provided on one side of the work counter, and the maintenance plate is connected to the work counter by screws.

[0014] Preferably, a shock-absorbing plate is provided at the bottom of each of the four corners of the work counter, and there are four shock-absorbing plates. The shock-absorbing plates are fixedly connected to the work counter, and a traveling wheel is provided under each of the four shock-absorbing plates. The traveling wheel is connected to the shock-absorbing plate by screws.

[0015] Preferably, a connecting sleeve is provided on one side of the walking wheel, and the connecting sleeve and the shock absorber are integrated. A screw is provided below the connecting sleeve, and the screw is threadedly connected to the connecting sleeve. A fixing plate is provided at the lower end of the screw, and the fixing plate is fixedly connected to the screw.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model device, through the setting of a bottom mold, a punch, a pad block and an elastic block, the bottom mold is connected to the base plate by screws, and the punch is connected to the mounting plate by screws. It can select the appropriate bottom mold and punch according to the size of the stamped electrode plate, without replacing the entire set of molds, and can meet the stamping requirements of multiple sets of electrode plates. When the punch falls and contacts the electrode plate, the elastic block contacts the pad block first, and provides buffer protection when the punch contacts the electrode plate.

[0018] 2. The utility model device is equipped with a second hydraulic cylinder, a connecting seat and a horizontal plate. The horizontal plate is slidably connected to the connecting seat. The second hydraulic cylinder drives the horizontal plate to move along the bottom of the bottom mold, moving the horizontal plate away from the bottom of the mold cavity. The stamped electrode plate falls from the mold cavity into the discharge cavity and is discharged.

[0019] 3. This utility model device is equipped with a shock-absorbing plate, traveling wheels, a fixed plate, a screw, and a connecting sleeve. The screw is threadedly connected to the connecting sleeve. Rotating the screw adjusts the height of the fixed plate. The fixed plate contacts the ground to fix the stamping die. The height of the four fixed plates can be adjusted independently, allowing the stamping die to be fixed on uneven surfaces. When the traveling wheels are in contact with the ground, the stamping die can be moved as a whole with the help of the traveling wheels. The shock-absorbing plate absorbs vibrations when subjected to vibration, improving the overall stability of the stamping die. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a structural diagram showing the connection between the punch die and the mounting plate of this utility model;

[0022] Figure 3This is a structural diagram showing the connection between the bottom mold, columns, and base plate of this utility model;

[0023] Figure 4 This is a structural diagram of the connection between the horizontal plate and the bottom plate of this utility model;

[0024] Figure 5 For the present utility model Figure 1 A magnified view of a portion of area A.

[0025] In the diagram: 1. Work counter; 2. Inspection plate; 3. Fixed plate; 4. Shock-absorbing plate; 5. Traveling wheel; 6. Discharge chamber; 7. Receiving plate; 8. Base plate; 9. Bottom mold; 10. Mold cavity; 11. Pad block; 12. Mounting plate; 13. Guide sleeve; 14. Column; 15. Beam plate; 16. First hydraulic cylinder; 17. Second hydraulic cylinder; 18. Punch die; 19. Screw; 20. Elastic block; 21. Connecting seat; 22. L-shaped connecting groove; 23. Horizontal plate; 24. Ball bearing; 25. Connecting sleeve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Please see Figure 1-5 This utility model provides an embodiment of a stamping die for processing electrode plates of an air-cooled fuel cell, comprising a work counter 1 and a beam plate 15. A base plate 8 is provided above the work counter 1 and is connected to the work counter 1 by screws. A bottom mold 9 is provided at the center of the base plate 8 and is connected to the base plate 8 by screws. A mold cavity 10 is provided at the center of the bottom mold 9. A horizontal plate 23 is provided below the bottom mold 9 and fits against the bottom mold 9. A second hydraulic cylinder 17 is provided on one side of the horizontal plate 23 and is connected to the work counter 1 by screws. The telescopic end of the second hydraulic cylinder 17 is connected to the horizontal plate 23. The mold 10 has an internal discharge chamber 6 located below the mold cavity 10. A column 14 is located above each of the four corners of the base plate 8. There are four columns 14, which are fixedly connected to the base plate 8. The beam plate 15 is connected to the columns 14 by screws. A mounting plate 12 is located below the beam plate 15. A first hydraulic cylinder 16 is located above the mounting plate 12 and is connected to the beam plate 15 by screws. The telescopic end of the first hydraulic cylinder 16 is connected to the mounting plate 12. A punch 18 is located below the center of the mounting plate 12 and is connected to the mounting plate 12 by screws. The punch 18 corresponds to the bottom mold 9.

[0028] In use: Select a bottom mold 9 and a punch 18 that are the same size as the electrode plate and install them on the bottom plate 8 and the mounting plate 12 respectively. Place the electrode plate flat on the bottom mold 9, drive the first hydraulic cylinder 16 to drive the mounting plate 12 to descend. As the mounting plate 12 descends, the punch 18 falls down and contacts the electrode plate to apply punching pressure. It works with the bottom mold 9 to realize the stamping of the electrode plate. After the stamping is completed, drive the second hydraulic cylinder 17 to drive the horizontal plate 23 to move. Move the horizontal plate 23 away from the lower end of the mold cavity 10. The stamped electrode plate falls from the mold cavity 10 into the discharge cavity 6 and falls down along the discharge cavity 6.

[0029] Please see Figure 1 , Figure 2 and Figure 3 A guide sleeve 13 is provided at each of the four corners of the mounting plate 12. There are four guide sleeves 13, and the guide sleeves 13 are fixedly connected to the mounting plate 12. The guide sleeves 13 are located outside the column 14 and are slidably connected to the column 14. A pad block 11 is provided at the upper end of the base plate 8. There are two pad blocks 11, and the pad blocks 11 are integrated with the base plate 8. The two pad blocks 11 are located on both sides of the bottom mold 9. An elastic block 20 is provided below the mounting plate 12. There are two elastic blocks 20, and the elastic blocks 20 are fixedly connected to the mounting plate 12. The two elastic blocks 20 are located on both sides of the punch 18, and the elastic blocks 20 are corresponding to the pad blocks 11. The guide sleeves 13 are slidably connected to the column 14, which guides and limits the lifting and lowering of the mounting plate 12, ensuring that the punch 18 falls smoothly to punch the electrode plate. When the punch 18 falls, the elastic block 20 contacts the pad block 11, providing buffer protection when the punch 18 contacts the electrode plate.

[0030] Please see Figure 4 A connecting seat 21 is provided below the base plate 8. There are two connecting seats 21, and they are connected to the base plate 8 by screws. The two connecting seats 21 are located on both sides of the horizontal plate 23. Each connecting seat 21 has an L-shaped connecting groove 22 on its inner side. The side end of the horizontal plate 23 extends into the interior of the L-shaped connecting groove 22, and the horizontal plate 23 is slidably connected to the connecting seat 21. Multiple balls 24 are equidistantly arranged on the end faces of both sides of the horizontal plate 23. The balls 24 contact the inner wall of the L-shaped connecting groove 22, and the balls 24 are connected to the connecting seat 21. The base 21 and the horizontal plate 23 are connected by a rolling connection. A receiving plate 7 is provided on one side of the lower part of the work counter 1, and the receiving plate 7 is connected to the work counter 1 by screws. The receiving plate 7 is located at the lower end of the discharge cavity 6. A maintenance plate 2 is provided on one side of the work counter 1, and the maintenance plate 2 is connected to the work counter 1 by screws. The connecting base 21 supports the horizontal plate 23 to ensure that the horizontal plate 23 is in a horizontal state. The ball bearing 24 reduces the moving resistance of the horizontal plate 23, so that the horizontal plate 23 moves smoothly and the horizontal plate 23 completely closes the lower end of the mold cavity 10.

[0031] Please see Figure 1 and Figure 5A shock-absorbing plate 4 is installed at the bottom of each of the four corners of the work counter 1. There are four shock-absorbing plates 4, and they are fixedly connected to the work counter 1. Each of the four shock-absorbing plates 4 has a traveling wheel 5, and the traveling wheel 5 is connected to the shock-absorbing plate 4 by screws. A connecting sleeve 25 is installed on one side of the traveling wheel 5, and the connecting sleeve 25 is integrated with the shock-absorbing plate 4. A screw 19 is installed below the connecting sleeve 25, and the screw 19 is threadedly connected to the connecting sleeve 25. A fixing plate 3 is installed at the lower end of the screw 19, and the fixing plate 3 is fixedly connected to the screw 19. When the traveling wheel 5 is in contact with the ground, the stamping die can be moved as a whole with the help of the traveling wheel 5. The height of the lower end of the fixing plate 3 is adjusted by rotating the screw 19, and the fixing plate 3 is brought into contact with the ground to fix the stamping die. The fixing structure is adjustable and can fix the stamping die on uneven bottom surfaces. The shock-absorbing plates 4 absorb vibration when subjected to vibration, thereby improving the overall stability of the stamping die.

[0032] Working principle: Rotating screw 19 adjusts the height of the lower end of fixed plate 3, bringing fixed plate 3 into contact with the ground to fix the stamping die. A bottom die 9 and a punch 18, matching the size of the electrode plate, are installed on the bottom plate 8 and mounting plate 12 respectively. Driving the second hydraulic cylinder 17 moves the horizontal plate 23, which blocks the lower end of the mold cavity 10, placing the electrode plate flat on the bottom die 9. Driving the first hydraulic cylinder 16 lowers the mounting plate 12, causing the punch 18 to fall down. The electrode plate is pressed by contact with the plate and the bottom mold 9 to achieve the stamping of the electrode plate. After the stamping is completed, the second hydraulic cylinder 17 is driven to move the horizontal plate 23 and move the horizontal plate 23 away from the lower end of the mold cavity 10. The stamped electrode plate falls from the mold cavity 10 into the discharge cavity 6 and falls down along the discharge cavity 6. When moving the stamping mold, the rotating screw 19 raises the fixed plate 3. When the traveling wheel 5 contacts the ground, the stamping mold is moved as a whole with the help of the traveling wheel 5. After the movement is completed, the fixed plate 3 is used to fix it.

[0033] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stamping die for processing electrode plates of an air-cooled fuel cell, comprising a work counter (1) and a beam plate (15), characterized in that: A base plate (8) is provided above the work counter (1), and the base plate (8) is connected to the work counter (1) by screws. A bottom mold (9) is provided at the center of the base plate (8), and the bottom mold (9) is connected to the base plate (8) by screws. A mold cavity (10) is provided at the center of the bottom mold (9). A horizontal plate (23) is provided below the bottom mold (9), and the horizontal plate (23) is in contact with the bottom mold (9). A second hydraulic cylinder (17) is provided on one side of the horizontal plate (23), and the second hydraulic cylinder (17) is connected to the work counter (1) by screws. The telescopic end of the second hydraulic cylinder (17) is connected to the horizontal plate (23). The work counter (1) is provided with a discharge chamber (6), and the discharge chamber (6) is located below the mold cavity (10). A column (14) is provided above each of the four corners of the base plate (8). There are four columns (14), and the columns (14) are fixedly connected to the base plate (8). The beam plate (15) is connected to the columns (14) by screws. An installation plate (12) is provided below the beam plate (15). A first hydraulic cylinder (16) is provided above the mounting plate (12), and the first hydraulic cylinder (16) is connected to the beam plate (15) by screws. The telescopic end of the first hydraulic cylinder (16) is connected to the mounting plate (12). A punch (18) is provided below the center of the mounting plate (12), and the punch (18) is connected to the mounting plate (12) by screws. The punch (18) is correspondingly provided to the bottom mold (9).

2. The stamping die for processing electrode plates of an air-cooled fuel cell according to claim 1, characterized in that: A guide sleeve (13) is provided at each of the four corners of the mounting plate (12). There are four guide sleeves (13), and the guide sleeves (13) are fixedly connected to the mounting plate (12). The guide sleeves (13) are located outside the column (14), and the guide sleeves (13) are slidably connected to the column (14).

3. The stamping die for processing electrode plates of an air-cooled fuel cell according to claim 1, characterized in that: The upper end of the base plate (8) is provided with two pads (11), and the pads (11) and the base plate (8) are integrated. The two pads (11) are located on both sides of the bottom mold (9). The lower part of the mounting plate (12) is provided with two elastic blocks (20), and the elastic blocks (20) are fixedly connected to the mounting plate (12). The two elastic blocks (20) are located on both sides of the punch (18) and correspond to the positions of the pads (11).

4. The stamping die for processing electrode plates of an air-cooled fuel cell according to claim 1, characterized in that: Two connecting seats (21) are provided below the base plate (8), and the connecting seats (21) are connected to the base plate (8) by screws. The two connecting seats (21) are located on both sides of the horizontal plate (23). The inner side of the two connecting seats (21) is provided with an L-shaped connecting groove (22). The side end of the horizontal plate (23) extends into the interior of the L-shaped connecting groove (22), and the horizontal plate (23) is slidably connected to the connecting seats (21).

5. The stamping die for processing electrode plates of an air-cooled fuel cell according to claim 4, characterized in that: Multiple balls (24) are equidistantly arranged on both sides of the end face of the horizontal plate (23). The balls (24) are in contact with the inner wall of the L-shaped connecting groove (22), and the balls (24) are in rolling connection with the connecting seat (21) and the horizontal plate (23).

6. The stamping die for processing electrode plates of an air-cooled fuel cell according to claim 1, characterized in that: A receiving plate (7) is provided on one side of the lower part of the work counter (1), and the receiving plate (7) is connected to the work counter (1) by screws. The receiving plate (7) is located at the lower end of the discharge chamber (6). A maintenance plate (2) is provided on one side of the work counter (1), and the maintenance plate (2) is connected to the work counter (1) by screws.

7. The stamping die for processing electrode plates of an air-cooled fuel cell according to claim 1, characterized in that: A shock-absorbing plate (4) is provided at the bottom of each of the four corners of the work counter (1). There are four shock-absorbing plates (4), and the shock-absorbing plates (4) are fixedly connected to the work counter (1). A walking wheel (5) is provided under each of the four shock-absorbing plates (4), and the walking wheel (5) is connected to the shock-absorbing plate (4) by screws.

8. The stamping die for processing electrode plates of an air-cooled fuel cell according to claim 7, characterized in that: A connecting sleeve (25) is provided on one side of the walking wheel (5), and the connecting sleeve (25) and the shock absorber (4) are integrated. A screw (19) is provided below the connecting sleeve (25), and the screw (19) is threadedly connected to the connecting sleeve (25). A fixing plate (3) is provided at the lower end of the screw (19), and the fixing plate (3) is fixedly connected to the screw (19).

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