Bipolar plate stamping forming automatic line device and stamping method

Abstract

The invention belongs to the field of battery bipolar plate production equipment, and particularly relates to a bipolar plate stamping forming automatic line device and a stamping method.The bipolar plate stamping forming automatic line device comprises a feeding machine, a cleaning machine, a feeding machine, four open type fixed table press machines and a PLC control cabinet; the four open type fixed table press machines are sequentially arranged behind the cleaning machine, metal plate molds are arranged on the open type fixed table press machines, the feeding machines are arranged among the open type fixed table press machines at intervals, and the feeding machine, the cleaning machine, the feeding machines and the open type fixed table press machines are all electrically connected with the PLC control cabinet. Through an automatic stamping mode, the efficiency and the qualified rate of stamping production of the metal bipolar plate are improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention belongs to the field of battery bipolar plate production equipment, and in particular relates to a bipolar plate stamping forming automatic line device and a stamping method. Background Art

[0002] A fuel cell stack is composed of several stacked cells, and each cell is composed of a bipolar plate, a proton exchange membrane, and a bipolar plate stacked in sequence. Each bipolar plate is formed by two metal plates (or two graphite plates) connected together, and each metal plate is provided with a concave and convex air flow field or hydrogen flow field. Therefore, an air flow field or hydrogen flow field needs to be stamped on each metal plate, and it is also necessary to stamp (cut) hydrogen inlet holes, air inlet holes, coolant inlet holes, hydrogen outlet holes, air outlet holes, coolant outlet holes, etc.

[0003] The existing technology for stamping metal bipolar plates is to process them separately step by step, and requires a lot of manpower, resulting in low production efficiency and a large number of defective products. In addition, since the raw material metal plate of the fuel cell separator is thin, the raw material metal plate is prone to warping, deformation and bending, etc. Therefore, it is difficult to improve productivity.

[0004] Therefore, how to provide a bipolar plate stamping automatic line device and stamping method has become an issue that technical personnel in this field need to consider. Summary of the invention

[0005] In view of the problems existing in the above-mentioned prior art, the present invention discloses a bipolar plate stamping forming automatic line device and stamping method. The present invention improves the efficiency and qualified rate of metal bipolar plate stamping production and reduces production costs through an automated stamping method. The present invention specifically discloses the following technical solutions:

[0006] A bipolar plate stamping automatic line device comprises a loader, a cleaning machine, a feeder, four open fixed table presses and a PLC control cabinet, wherein the cleaning machine is arranged behind the loader, and the four open fixed table presses are arranged in sequence behind the cleaning machine, and metal plate molds are arranged on the four open fixed table presses, and the feeder is arranged at intervals between the open fixed table presses, and the loader, cleaning machine, feeder and open fixed table presses are all electrically connected to the PLC control cabinet.

[0007] Furthermore, the first open fixed-table press is used for stamping and cutting materials, and the stamping tonnage of the first open fixed-table press is 100t.

[0008] Furthermore, the second and third open fixed-table presses are used for primary stamping and secondary stamping of metal sheets, and the stamping tonnage of the second and third open fixed-table presses is 500t.

[0009] Furthermore, the fourth open fixed-table press is used for punching holes in metal sheets, and the punching tonnage of the fourth open fixed-table press is 100t.

[0010] Furthermore, a metal sheet tensioning and straightening device is provided at the front end of the first open fixed-table press.

[0011] Furthermore, the feeder is a suction cup type manipulator.

[0012] A bipolar plate stamping forming automatic line stamping method, using the above-mentioned bipolar plate stamping forming automatic line device, comprises the following steps:

[0013] S01. Place the metal sheet coil into the feeder and position it;

[0014] S02. Control the cleaning machine through the PLC control cabinet to clean the coils conveyed by the feeder;

[0015] S03. Control four open fixed-table presses through a PLC control cabinet to punch and cut the transferred metal sheets, punch the metal sheets into a primary shape, punch the metal sheets into a secondary shape, and punch holes in the metal sheets;

[0016] S04. Control four open fixed-table presses to be in an open state through a PLC control cabinet, and control a suction cup manipulator to absorb the processed metal sheet on the metal sheet mold and transfer it to the equipment of the next process;

[0017] S05. By adjusting the PLC control cabinet program, setting the corresponding beat, repeating steps S02 to S03, the stamping of the metal bipolar plate is completed.

[0018] The beneficial effects of the present invention are:

[0019] The present invention utilizes a PLC control cabinet to centrally control a bipolar plate stamping automatic line, and through an automated stamping method, improves the efficiency and qualified rate of metal bipolar plate stamping production, reduces production costs, and has a faster production rhythm. The setting of a cleaning machine can clean particles such as oil and dust in the coil, thereby avoiding stamping defects of metal sheets and damage to molds. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the present invention;

[0021] Figure 2 It is a top view of the present invention.

[0022] Among them, 1. Loading machine; 2. Cleaning machine; 3. The first open fixed table press; 4. The second open fixed table press; 5. The third open fixed table press; 6. The fourth open fixed table press; 7. Feeding machine; 8. Metal sheet; 9. Metal sheet tensioning and straightening device. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1

[0025] See attached Figure 1-2 The present embodiment discloses a bipolar plate stamping automatic line device, including a feeder 1, a cleaning machine 2, a feeder 7, four open fixed table presses and a PLC control cabinet (not shown in the figure), the cleaning machine 2 is arranged behind the feeder 1, and the four open fixed table presses are arranged in sequence behind the cleaning machine 2. A metal plate mold is arranged on the open fixed table press, and the feeder 7 is arranged at intervals between each open fixed table press. The feeder 1, the cleaning machine 2, the feeder 7, and the open fixed table press are all electrically connected to the PLC control cabinet. The setting of the cleaning machine 2 of the present invention can clean the particles such as oil and dust in the coil, avoid the stamping defects of the metal sheet 8 and the damage of the mold, and the PLC control cabinet centrally controls each device, which is convenient for the adjustment of the beat, so that the production beat of the present invention is faster, the efficiency and qualified rate of the metal bipolar plate stamping production are improved, and the production cost is reduced.

[0026] As a preferred embodiment of the present invention, the first open fixed table press machine 3 is used for punching and cutting materials, and the punching tonnage of the first open fixed table press machine 3 is 100t;

[0027] The second open fixed table press machine 4 and the third open fixed table press machine 5 are used for primary stamping and secondary stamping of the metal sheet 8. The stamping tonnage of the second open fixed table press machine 4 and the third open fixed table press machine 5 is 500t.

[0028] The fourth open fixed-table press machine 6 is used for punching holes in the metal sheet 8, and the punching tonnage of the fourth open fixed-table press machine 6 is 100t.

[0029] As a preferred embodiment of the present invention, a metal sheet tensioning and straightening device 9 is provided at the front end of the first open fixed table press 3, through which the curled metal sheet 8 can be tensioned and straightened to facilitate subsequent stamping.

[0030] As a preferred embodiment of the present invention, the feeder 7 is a suction cup type robot. The robot in this embodiment is provided with 8 suction cups, which can be adsorbed on the edges of each surface of the metal sheet 8 to make the force evenly distributed, thereby preventing the metal sheet 8 from warping and deforming during the transfer process.

[0031] Example 2

[0032] This embodiment discloses a stamping method using a bipolar plate stamping forming automatic line device, comprising the following steps:

[0033] S01. Place the metal sheet 8 coil into the feeder 1 and position it;

[0034] S02. The cleaning machine 2 is controlled by the PLC control cabinet to clean the coiled material transmitted by the feeder 1;

[0035] S03. The four open fixed-station press machines are controlled by the PLC control cabinet to punch and cut the metal sheets 8 respectively, the metal sheets 8 are punched once, the metal sheets 8 are punched twice, and the metal sheets 8 are punched into holes;

[0036] S04. The four open fixed-station presses are controlled by the PLC control cabinet to be in the open state, and the suction cup manipulator is controlled to adsorb the processed metal sheet 8 on the metal sheet mold and transmit it to the equipment of the next process;

[0037] S05. By adjusting the PLC control cabinet program, setting the corresponding beat, repeating steps S02 to S03, the stamping of the metal bipolar plate is completed.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A bipolar plate stamping automatic line device, characterized in that: It includes a loader, a cleaning machine, a feeder, four open fixed table presses and a PLC control cabinet. The cleaning machine is arranged behind the loader. The four open fixed table presses are arranged in sequence behind the cleaning machine. Metal plate molds are arranged on the four open fixed table presses. The feeder is arranged at intervals between the open fixed table presses. The loader, cleaning machine, feeder and open fixed table press are all electrically connected to the PLC control cabinet.

2. The bipolar plate stamping automatic line device according to claim 1, characterized in that: The first open fixed-table press is used for punching and cutting materials, and the punching tonnage of the first open fixed-table press is 100t.

3. The bipolar plate stamping automatic line device according to claim 1, characterized in that: The second and third open fixed-table presses are used for primary stamping and secondary stamping of metal sheets, and the stamping tonnage of the second and third open fixed-table presses is 500t.

4. The bipolar plate stamping automatic line device according to claim 1, characterized in that: The fourth open fixed-table press is used for punching holes in metal sheets, and the punching tonnage of the fourth open fixed-table press is 100t.

5. The bipolar plate stamping automatic line device according to claim 1, characterized in that: The front end of the first open fixed-table press is provided with a metal sheet tensioning and straightening device.

6. The bipolar plate stamping automatic line device according to claim 1, characterized in that: The feeder is a suction cup type manipulator.

7. A bipolar plate stamping forming automatic line stamping method, characterized in that: The bipolar plate stamping automatic line device according to any one of claims 1 to 6 is adopted, comprising the following steps: S01. Place the metal sheet coil into the feeder and position it; S02. Control the cleaning machine through the PLC control cabinet to clean the coiled material conveyed by the feeder; S03. Control four open fixed-table presses through a PLC control cabinet to punch and cut the transferred metal sheets, punch the metal sheets into a primary shape, punch the metal sheets into a secondary shape, and punch holes in the metal sheets; S04. Control four open fixed-table presses to be in an open state through a PLC control cabinet, and control a suction cup manipulator to absorb the processed metal sheet on the metal sheet mold and transfer it to the equipment of the next process; S05. By adjusting the PLC control cabinet program, setting the corresponding beat, repeating steps S02 to S03, the stamping of the metal bipolar plate is completed.

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