Punch forming die for bipolar plate of hydrogen fuel cell

Abstract

The invention relates to the technical field of die pressing equipment, and provides a punch forming die for a bipolar plate of ahydrogen fuel cell. The punch forming die comprises a punch forming die body, the punch forming die body comprises a die pressing plate, the left side and the right side of the die pressing plate are movably connected with die stripping columns, and the bottom ends of the die stripping columns are movably connected with regulation and control gas rods. According to the punch forming die for the bipolar plate of the hydrogen fuel cell, a sliding rod column is extruded and expanded to be in fit connection with a downward pressing sliding rod, the downward pressing sliding rod moves towards the lower side and drives sliding valves on the two sides to move towards the lower side, the sliding valves are opened towards the two sides through sliding friction force, then die forming heat is released, and meanwhile, when the die is released from the center, hot air flow recoils towards the outer side, connecting rods on the two sides receive resistance, then the die stripping columns obtain upward thrust, the die stripping speed is adjusted, heat is slowly released, the situation that the surface of the die is softened due to the high-strength temperature difference during die stripping is prevented, large loss is avoided, and the product quality is improved.

Description

technical field [0001] The invention relates to the technical field of die equipment, in particular to a stamping die for a hydrogen fuel cell bipolar plate. Background technique [0002] Stamping die is a special process equipment for processing materials into parts in cold stamping processing, called cold stamping die, and stamping is at room temperature, using the mold installed on the press to apply pressure to the material to make it separate Or plastic deformation, so as to obtain a pressure processing method of the required parts. [0003] When the current stamping die is in use, after the high-strength pressure is used to stamp the die, the spring rod of the external ejector will cause the ejection to be too long, which will cause dimensional variation, and then the die will fail to form, causing a large loss , and after the current mold is released, the high temperature difference will cause the surface of the mold to soften, and the quality of the production is lo...

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Problems solved by technology

[0003] When the current stamping die is in use, after the high-strength pressure is used to stamp the die, the spring rod of the external ejector will cause the ejection to be too long, which will cause dimensional variation, and then the die will fail to form, causing a large loss , and after the current mold is released, the high-strength temperature difference will cause the surface of the mold to soften, and the quality of the production is low. Therefore, we propose a hydrogen fuel cell bipolar plate stamping mold

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